diff --git a/res/layout-land/launcher.xml b/res/layout-land/launcher.xml
index abb19f4..2880c18 100644
--- a/res/layout-land/launcher.xml
+++ b/res/layout-land/launcher.xml
@@ -45,8 +45,8 @@
             android:layout_gravity="end" />
 
         <include
-            android:id="@+id/qsb_bar"
-            layout="@layout/qsb_bar" />
+            android:id="@+id/search_drop_target_bar"
+            layout="@layout/search_drop_target_bar" />
 
         <include layout="@layout/overview_panel"
             android:id="@+id/overview_panel"
diff --git a/res/layout-land/search_bar.xml b/res/layout-land/qsb.xml
similarity index 100%
rename from res/layout-land/search_bar.xml
rename to res/layout-land/qsb.xml
diff --git a/res/layout-port/launcher.xml b/res/layout-port/launcher.xml
index 7400534..574b73e 100644
--- a/res/layout-port/launcher.xml
+++ b/res/layout-port/launcher.xml
@@ -57,8 +57,8 @@
             android:layout_gravity="center_horizontal" />
 
         <include
-            android:id="@+id/qsb_bar"
-            layout="@layout/qsb_bar" />
+            android:id="@+id/search_drop_target_bar"
+            layout="@layout/search_drop_target_bar" />
 
         <!-- The Workspace cling must appear under the AppsCustomizePagedView below to ensure
              that it is still visible during the transition to AllApps and doesn't overlay on
diff --git a/res/layout-port/search_bar.xml b/res/layout-port/qsb.xml
similarity index 98%
rename from res/layout-port/search_bar.xml
rename to res/layout-port/qsb.xml
index e993f78..4c9963d 100644
--- a/res/layout-port/search_bar.xml
+++ b/res/layout-port/qsb.xml
@@ -16,7 +16,6 @@
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3"
-    style="@style/SearchDropTargetBar"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@drawable/search_frame">
diff --git a/res/layout-sw720dp/launcher.xml b/res/layout-sw720dp/launcher.xml
index 7dac271..64b0fa0 100644
--- a/res/layout-sw720dp/launcher.xml
+++ b/res/layout-sw720dp/launcher.xml
@@ -45,8 +45,8 @@
             android:layout_height="match_parent" />
 
         <include
-            android:id="@+id/qsb_bar"
-            layout="@layout/qsb_bar" />
+            android:id="@+id/search_drop_target_bar"
+            layout="@layout/search_drop_target_bar" />
 
         <include layout="@layout/overview_panel"
             android:id="@+id/overview_panel"
diff --git a/res/layout-port/search_bar.xml b/res/layout-sw720dp/qsb.xml
similarity index 98%
copy from res/layout-port/search_bar.xml
copy to res/layout-sw720dp/qsb.xml
index e993f78..4c9963d 100644
--- a/res/layout-port/search_bar.xml
+++ b/res/layout-sw720dp/qsb.xml
@@ -16,7 +16,6 @@
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3"
-    style="@style/SearchDropTargetBar"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@drawable/search_frame">
diff --git a/res/layout-sw720dp/search_bar.xml b/res/layout-sw720dp/search_bar.xml
deleted file mode 100644
index 3276f3f..0000000
--- a/res/layout-sw720dp/search_bar.xml
+++ /dev/null
@@ -1,71 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2011 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-<RelativeLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3"
-    style="@style/SearchDropTargetBar"
-    android:background="@drawable/search_frame">
-   <!-- Global search icon -->
-   <com.android.launcher3.HolographicLinearLayout
-        style="@style/SearchButton.WithPaddingStart"
-        launcher:sourceImageViewId="@+id/search_button"
-        android:id="@+id/search_button_container"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_gravity="center_vertical"
-        android:layout_centerVertical="true"
-        android:layout_alignParentStart="true"
-        android:layout_toStartOf="@+id/voice_button_container"
-        android:onClick="onClickSearchButton"
-        android:focusable="true"
-        android:clickable="true"
-        android:contentDescription="@string/accessibility_search_button">
-       <ImageView
-            android:id="@+id/search_button"
-            android:layout_width="wrap_content"
-            android:layout_height="match_parent"
-            android:layout_gravity="start"
-            android:scaleType="fitCenter"
-            android:src="@drawable/ic_home_search_normal_holo"
-            android:adjustViewBounds="true" />
-    </com.android.launcher3.HolographicLinearLayout>
-
-    <!-- Voice search icon -->
-    <com.android.launcher3.HolographicLinearLayout
-        style="@style/SearchButton"
-        launcher:sourceImageViewId="@+id/voice_button"
-        android:id="@+id/voice_button_container"
-        android:layout_width="@dimen/app_icon_size"
-        android:layout_height="match_parent"
-        android:layout_gravity="center_vertical"
-        android:layout_centerVertical="true"
-        android:layout_alignParentEnd="true"
-        android:paddingEnd="8dp"
-        android:paddingRight="8dp"
-        android:onClick="onClickVoiceButton"
-        android:focusable="true"
-        android:clickable="true"
-        android:contentDescription="@string/accessibility_voice_search_button">
-        <ImageView
-            android:id="@+id/voice_button"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_gravity="end"
-            android:scaleType="fitCenter"
-            android:src="@drawable/ic_home_voice_search_holo"
-            android:adjustViewBounds="true" />
-    </com.android.launcher3.HolographicLinearLayout>
-</RelativeLayout>
diff --git a/res/layout/qsb_bar.xml b/res/layout/search_drop_target_bar.xml
similarity index 94%
rename from res/layout/qsb_bar.xml
rename to res/layout/search_drop_target_bar.xml
index 030acf6..2d51b93 100644
--- a/res/layout/qsb_bar.xml
+++ b/res/layout/search_drop_target_bar.xml
@@ -15,14 +15,13 @@
 -->
 <com.android.launcher3.SearchDropTargetBar
     xmlns:android="http://schemas.android.com/apk/res/android"
-    style="@style/QSBBar"
+    android:orientation="horizontal"
     android:focusable="false"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
     <!-- Drag specific targets container -->
     <LinearLayout
-        style="@style/SearchDropTargetBar"
         android:id="@+id/drag_target_bar"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
diff --git a/res/values-land/styles.xml b/res/values-land/styles.xml
index fa3801d..87a7444 100644
--- a/res/values-land/styles.xml
+++ b/res/values-land/styles.xml
@@ -19,10 +19,6 @@
 
 <resources>
 <!-- Search Bar -->
-    <style name="QSBBar">
-    </style>
-    <style name="SearchDropTargetBar">
-    </style>
     <style name="SearchButton">
     </style>
     <style name="DropTargetButtonContainer">
diff --git a/res/values-sw720dp/styles.xml b/res/values-sw720dp/styles.xml
index b3afae3..507af1d 100644
--- a/res/values-sw720dp/styles.xml
+++ b/res/values-sw720dp/styles.xml
@@ -58,11 +58,6 @@
         <item name="android:maxWidth">240dp</item>
     </style>
 
-    <!-- QSB Search / Drop Target bar -->
-    <style name="QSBBar">
-    </style>
-    <style name="SearchDropTargetBar">
-    </style>
     <style name="SearchButton">
     </style>
     <style name="DropTargetButtonContainer">
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 28b6a5b..1eca5b3 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -25,7 +25,8 @@
     <dimen name="dynamic_grid_workspace_page_spacing">8dp</dimen>
     <dimen name="dynamic_grid_overview_min_icon_zone_height">80dp</dimen>
     <dimen name="dynamic_grid_overview_max_icon_zone_height">120dp</dimen>
-    <dimen name="dynamic_grid_overview_bar_max_width">280dp</dimen>
+    <dimen name="dynamic_grid_overview_bar_item_width">48dp</dimen>
+    <dimen name="dynamic_grid_overview_bar_spacer_width">68dp</dimen>
 
 <!-- Cling -->
     <dimen name="clingPunchThroughGraphicCenterRadius">94dp</dimen>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 66bd36f..2c6306a 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -85,9 +85,9 @@
     <!-- Error message when user has filled a home screen -->
     <string name="out_of_space">No more room on this Home screen.</string>
     <!-- Error message when user has filled the hotseat -->
-    <string name="hotseat_out_of_space">No more room on the hotseat.</string>
+    <string name="hotseat_out_of_space">No more room in the Favorites tray</string>
     <!-- Error message when user tries to drop an invalid item on the hotseat -->
-    <string name="invalid_hotseat_item">This widget is too large for the hotseat.</string>
+    <string name="invalid_hotseat_item">This widget is too large for the Favorites tray</string>
     <!-- Message displayed when a shortcut is created by an external application -->
     <string name="shortcut_installed">Shortcut \"<xliff:g id="name" example="Browser">%s</xliff:g>\" created.</string>
     <!-- Message displayed when a shortcut is uninstalled by an external application -->
diff --git a/res/values/styles.xml b/res/values/styles.xml
index c9834f8..c18dccb 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -91,10 +91,6 @@
         <item name="android:shadowRadius">4.0</item>
         <item name="android:shadowColor">#FF000000</item>
     </style>
-
-    <style name="QSBBar">
-        <item name="android:orientation">horizontal</item>
-    </style>
     <style name="SearchDropTargetBar">
     </style>
     <style name="SearchButton">
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index a64d5e4..7ce0446 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -31,9 +31,11 @@
 import android.view.Gravity;
 import android.view.Surface;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
 import android.view.WindowManager;
 import android.widget.FrameLayout;
+import android.widget.LinearLayout;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -88,7 +90,8 @@
 
     int overviewModeMinIconZoneHeightPx;
     int overviewModeMaxIconZoneHeightPx;
-    int overviewModeMaxBarWidthPx;
+    int overviewModeBarItemWidthPx;
+    int overviewModeBarSpacerWidthPx;
     float overviewModeIconZoneRatio;
     float overviewModeScaleFactor;
 
@@ -170,8 +173,10 @@
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_min_icon_zone_height);
         overviewModeMaxIconZoneHeightPx =
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_max_icon_zone_height);
-        overviewModeMaxBarWidthPx =
-                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_max_width);
+        overviewModeBarItemWidthPx =
+                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_item_width);
+        overviewModeBarSpacerWidthPx =
+                res.getDimensionPixelSize(R.dimen.dynamic_grid_overview_bar_spacer_width);
         overviewModeIconZoneRatio =
                 res.getInteger(R.integer.config_dynamic_grid_overview_icon_zone_percentage) / 100f;
         overviewModeScaleFactor =
@@ -593,6 +598,21 @@
         return isVerticalBarLayout() || isLargeTablet();
     }
 
+    int getVisibleChildCount(ViewGroup parent) {
+        int visibleChildren = 0;
+        for (int i = 0; i < parent.getChildCount(); i++) {
+            if (parent.getChildAt(i).getVisibility() != View.GONE) {
+                visibleChildren++;
+            }
+        }
+        return visibleChildren;
+    }
+
+    int calculateOverviewModeWidth(int visibleChildCount) {
+        return visibleChildCount * overviewModeBarItemWidthPx +
+                (visibleChildCount-1) * overviewModeBarSpacerWidthPx;
+    }
+
     public void layout(Launcher launcher) {
         FrameLayout.LayoutParams lp;
         Resources res = launcher.getResources();
@@ -605,10 +625,13 @@
             // Vertical search bar space
             lp.gravity = Gravity.TOP | Gravity.LEFT;
             lp.width = searchBarSpaceHeightPx;
-            lp.height = LayoutParams.MATCH_PARENT;
+            lp.height = LayoutParams.WRAP_CONTENT;
             searchBar.setPadding(
                     0, 2 * edgeMarginPx, 0,
                     2 * edgeMarginPx);
+
+            LinearLayout targets = (LinearLayout) searchBar.findViewById(R.id.drag_target_bar);
+            targets.setOrientation(LinearLayout.VERTICAL);
         } else {
             // Horizontal search bar space
             lp.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;
@@ -621,13 +644,6 @@
         }
         searchBar.setLayoutParams(lp);
 
-        // Layout the search bar
-        View qsbBar = launcher.getQsbBar();
-        LayoutParams vglp = qsbBar.getLayoutParams();
-        vglp.width = LayoutParams.MATCH_PARENT;
-        vglp.height = LayoutParams.MATCH_PARENT;
-        qsbBar.setLayoutParams(vglp);
-
         // Layout the voice proxy
         View voiceButtonProxy = launcher.findViewById(R.id.voice_button_proxy);
         if (voiceButtonProxy != null) {
@@ -739,12 +755,13 @@
         }
 
         // Layout the Overview Mode
-        View overviewMode = launcher.getOverviewPanel();
+        ViewGroup overviewMode = launcher.getOverviewPanel();
         if (overviewMode != null) {
             Rect r = getOverviewModeButtonBarRect();
             lp = (FrameLayout.LayoutParams) overviewMode.getLayoutParams();
             lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
-            lp.width = Math.min(availableWidthPx, overviewModeMaxBarWidthPx);
+            lp.width = Math.min(availableWidthPx,
+                    calculateOverviewModeWidth(getVisibleChildCount(overviewMode)));
             lp.height = r.height();
             overviewMode.setLayoutParams(lp);
         }
diff --git a/src/com/android/launcher3/FocusHelper.java b/src/com/android/launcher3/FocusHelper.java
index 4600985..bb62bac 100644
--- a/src/com/android/launcher3/FocusHelper.java
+++ b/src/com/android/launcher3/FocusHelper.java
@@ -665,7 +665,7 @@
         final CellLayout layout = (CellLayout) parent.getParent();
         final Workspace workspace = (Workspace) layout.getParent();
         final ViewGroup launcher = (ViewGroup) workspace.getParent();
-        final ViewGroup tabs = (ViewGroup) launcher.findViewById(R.id.qsb_bar);
+        final ViewGroup tabs = (ViewGroup) launcher.findViewById(R.id.search_drop_target_bar);
         final ViewGroup hotseat = (ViewGroup) launcher.findViewById(R.id.hotseat);
         int pageIndex = workspace.indexOfChild(layout);
         int pageCount = workspace.getChildCount();
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index aadcd87..6e3032f 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -248,7 +248,7 @@
     private FolderInfo mFolderInfo;
 
     private Hotseat mHotseat;
-    private View mOverviewPanel;
+    private ViewGroup mOverviewPanel;
 
     private View mAllAppsButton;
 
@@ -256,7 +256,7 @@
     private AppsCustomizeTabHost mAppsCustomizeTabHost;
     private AppsCustomizePagedView mAppsCustomizeContent;
     private boolean mAutoAdvanceRunning = false;
-    private View mQsbBar;
+    private View mQsb;
 
     private Bundle mSavedState;
     // We set the state in both onCreate and then onNewIntent in some cases, which causes both
@@ -1061,6 +1061,10 @@
         public void onScrollProgressChanged(float progress);
     }
 
+    protected boolean hasSettings() {
+        return false;
+    }
+
     protected void startSettings() {
     }
 
@@ -1242,7 +1246,7 @@
             mHotseat.setOnLongClickListener(this);
         }
 
-        mOverviewPanel = findViewById(R.id.overview_panel);
+        mOverviewPanel = (ViewGroup) findViewById(R.id.overview_panel);
         View widgetButton = findViewById(R.id.widget_button);
         widgetButton.setOnClickListener(new OnClickListener() {
             @Override
@@ -1266,15 +1270,23 @@
         wallpaperButton.setOnTouchListener(getHapticFeedbackTouchListener());
 
         View settingsButton = findViewById(R.id.settings_button);
-        settingsButton.setOnClickListener(new OnClickListener() {
-            @Override
-            public void onClick(View arg0) {
-                if (!mWorkspace.isSwitchingState()) {
-                    startSettings();
-                }
-            }
-        });
-        settingsButton.setOnTouchListener(getHapticFeedbackTouchListener());
+        if (hasSettings()) {
+            settingsButton.setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View arg0) {
+                    if (!mWorkspace.isSwitchingState()) {
+                        startSettings();
+                    }
+                    }
+            });
+            settingsButton.setOnTouchListener(getHapticFeedbackTouchListener());
+        } else {
+            settingsButton.setVisibility(View.GONE);
+            FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) widgetButton.getLayoutParams();
+            lp.gravity = Gravity.END | Gravity.TOP;
+            widgetButton.requestLayout();
+        }
+
         mOverviewPanel.setAlpha(0f);
 
         // Setup the workspace
@@ -1284,7 +1296,8 @@
         dragController.addDragListener(mWorkspace);
 
         // Get the search/delete bar
-        mSearchDropTargetBar = (SearchDropTargetBar) mDragLayer.findViewById(R.id.qsb_bar);
+        mSearchDropTargetBar = (SearchDropTargetBar)
+                mDragLayer.findViewById(R.id.search_drop_target_bar);
 
         // Setup AppsCustomize
         mAppsCustomizeTabHost = (AppsCustomizeTabHost) findViewById(R.id.apps_customize_pane);
@@ -1746,7 +1759,7 @@
         return mHotseat;
     }
 
-    public View getOverviewPanel() {
+    public ViewGroup getOverviewPanel() {
         return mOverviewPanel;
     }
 
@@ -3458,11 +3471,11 @@
     }
 
     public View getQsbBar() {
-        if (mQsbBar == null) {
-            mQsbBar = mInflater.inflate(R.layout.search_bar, mSearchDropTargetBar, false);
-            mSearchDropTargetBar.addView(mQsbBar);
+        if (mQsb == null) {
+            mQsb = mInflater.inflate(R.layout.qsb, mSearchDropTargetBar, false);
+            mSearchDropTargetBar.addView(mQsb);
         }
-        return mQsbBar;
+        return mQsb;
     }
 
     protected boolean updateGlobalSearchIcon() {
@@ -4309,12 +4322,13 @@
     }
 
     private boolean shouldRunFirstRunActivity() {
-        return !ActivityManager.isRunningInTestHarness();
+        return !ActivityManager.isRunningInTestHarness() &&
+                !mSharedPrefs.getBoolean(FIRST_RUN_ACTIVITY_DISPLAYED, false);
     }
 
     public void showFirstRunActivity() {
-        if (shouldRunFirstRunActivity() && hasFirstRunActivity()
-                && !mSharedPrefs.getBoolean(FIRST_RUN_ACTIVITY_DISPLAYED, false)) {
+        if (shouldRunFirstRunActivity() &&
+                hasFirstRunActivity()) {
             Intent firstRunIntent = getFirstRunActivity();
             if (firstRunIntent != null) {
                 startActivity(firstRunIntent);
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 156befb..29e18f9 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -245,4 +245,8 @@
         return getInstance().mBuildInfo.isDogfoodBuild() &&
                 Launcher.isPropertyEnabled(Launcher.DISABLE_ALL_APPS_PROPERTY);
     }
+
+    public static boolean isDogfoodBuild() {
+        return getInstance().mBuildInfo.isDogfoodBuild();
+    }
 }
diff --git a/src/com/android/launcher3/LauncherBackupHelper.java b/src/com/android/launcher3/LauncherBackupHelper.java
index 556d4af..69b0026 100644
--- a/src/com/android/launcher3/LauncherBackupHelper.java
+++ b/src/com/android/launcher3/LauncherBackupHelper.java
@@ -38,6 +38,7 @@
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.ComponentName;
 import android.content.ContentResolver;
+import android.content.ContentValues;
 import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
@@ -331,9 +332,15 @@
         if (DEBUG) Log.d(TAG, "read (" + buffer.length + "): " +
                 Base64.encodeToString(buffer, 0, dataSize, Base64.NO_WRAP));
 
+        if (!mRestoreEnabled) {
+            if (DEBUG) Log.v(TAG, "restore not enabled: skipping database mutation");
+            return;
+        }
+
         try {
-            Favorite favorite =  unpackFavorite(buffer, 0, dataSize);
-            if (DEBUG) Log.d(TAG, "unpacked " + favorite.itemType);
+            ContentResolver cr = mContext.getContentResolver();
+            ContentValues values = unpackFavorite(buffer, 0, dataSize);
+            cr.insert(Favorites.CONTENT_URI, values);
         } catch (InvalidProtocolBufferNanoException e) {
             Log.w(TAG, "failed to decode proto", e);
         }
@@ -363,6 +370,7 @@
         Set<String> currentIds = new HashSet<String>(cursor.getCount());
         try {
             cursor.moveToPosition(-1);
+            Log.d(TAG, "dumping screens after: " + in.t);
             while(cursor.moveToNext()) {
                 final long id = cursor.getLong(ID_INDEX);
                 final long updateTime = cursor.getLong(ID_MODIFIED);
@@ -373,6 +381,9 @@
                 if (!savedIds.contains(backupKey) || updateTime >= in.t) {
                     byte[] blob = packScreen(cursor);
                     writeRowToBackup(key, blob, out, data);
+                    if (DEBUG) Log.d(TAG, "wrote screen " + id);
+                } else {
+                    if (DEBUG) Log.d(TAG, "screen " + id + " was too old: " + updateTime);
                 }
             }
         } finally {
@@ -399,9 +410,17 @@
         Log.v(TAG, "unpacking screen " + key.id);
         if (DEBUG) Log.d(TAG, "read (" + buffer.length + "): " +
                 Base64.encodeToString(buffer, 0, dataSize, Base64.NO_WRAP));
+
+        if (!mRestoreEnabled) {
+            if (DEBUG) Log.v(TAG, "restore not enabled: skipping database mutation");
+            return;
+        }
+
         try {
-            Screen screen = unpackScreen(buffer, 0, dataSize);
-            if (DEBUG) Log.d(TAG, "unpacked " + screen.rank);
+            ContentResolver cr = mContext.getContentResolver();
+            ContentValues values = unpackScreen(buffer, 0, dataSize);
+            cr.insert(WorkspaceScreens.CONTENT_URI, values);
+
         } catch (InvalidProtocolBufferNanoException e) {
             Log.w(TAG, "failed to decode proto", e);
         }
@@ -519,6 +538,13 @@
             if (icon == null) {
                 Log.w(TAG, "failed to unpack icon for " + key.name);
             }
+
+            if (!mRestoreEnabled) {
+                if (DEBUG) Log.v(TAG, "restore not enabled: skipping database mutation");
+                return;
+            } else {
+                // future site of icon cache mutation
+            }
         } catch (InvalidProtocolBufferNanoException e) {
             Log.w(TAG, "failed to decode proto", e);
         }
@@ -634,6 +660,13 @@
                     Log.w(TAG, "failed to unpack widget icon for " + key.name);
                 }
             }
+
+            if (!mRestoreEnabled) {
+                if (DEBUG) Log.v(TAG, "restore not enabled: skipping database mutation");
+                return;
+            } else {
+                // future site of widget table mutation
+            }
         } catch (InvalidProtocolBufferNanoException e) {
             Log.w(TAG, "failed to decode proto", e);
         }
@@ -770,11 +803,43 @@
     }
 
     /** Deserialize a Favorite from persistence, after verifying checksum wrapper. */
-    private Favorite unpackFavorite(byte[] buffer, int offset, int dataSize)
+    private ContentValues unpackFavorite(byte[] buffer, int offset, int dataSize)
             throws InvalidProtocolBufferNanoException {
         Favorite favorite = new Favorite();
         MessageNano.mergeFrom(favorite, readCheckedBytes(buffer, offset, dataSize));
-        return favorite;
+        if (DEBUG) Log.d(TAG, "unpacked " + favorite.itemType + ", " + favorite.id);
+        ContentValues values = new ContentValues();
+        values.put(Favorites._ID, favorite.id);
+        values.put(Favorites.SCREEN, favorite.screen);
+        values.put(Favorites.CONTAINER, favorite.container);
+        values.put(Favorites.CELLX, favorite.cellX);
+        values.put(Favorites.CELLY, favorite.cellY);
+        values.put(Favorites.SPANX, favorite.spanX);
+        values.put(Favorites.SPANY, favorite.spanY);
+        values.put(Favorites.ICON_TYPE, favorite.iconType);
+        if (favorite.iconType == Favorites.ICON_TYPE_RESOURCE) {
+            values.put(Favorites.ICON_PACKAGE, favorite.iconPackage);
+            values.put(Favorites.ICON_RESOURCE, favorite.iconResource);
+        }
+        if (favorite.iconType == Favorites.ICON_TYPE_BITMAP) {
+            values.put(Favorites.ICON, favorite.icon);
+        }
+        if (!TextUtils.isEmpty(favorite.title)) {
+            values.put(Favorites.TITLE, favorite.title);
+        } else {
+            values.put(Favorites.TITLE, "");
+        }
+        if (!TextUtils.isEmpty(favorite.intent)) {
+            values.put(Favorites.INTENT, favorite.intent);
+        }
+        values.put(Favorites.ITEM_TYPE, favorite.itemType);
+        if (favorite.itemType == Favorites.ITEM_TYPE_APPWIDGET) {
+            if (!TextUtils.isEmpty(favorite.appWidgetProvider)) {
+                values.put(Favorites.APPWIDGET_PROVIDER, favorite.appWidgetProvider);
+            }
+            values.put(Favorites.APPWIDGET_ID, favorite.appWidgetId);
+        }
+        return values;
     }
 
     /** Serialize a Screen for persistence, including a checksum wrapper. */
@@ -787,11 +852,15 @@
     }
 
     /** Deserialize a Screen from persistence, after verifying checksum wrapper. */
-    private Screen unpackScreen(byte[] buffer, int offset, int dataSize)
+    private ContentValues unpackScreen(byte[] buffer, int offset, int dataSize)
             throws InvalidProtocolBufferNanoException {
         Screen screen = new Screen();
         MessageNano.mergeFrom(screen, readCheckedBytes(buffer, offset, dataSize));
-        return screen;
+        if (DEBUG) Log.d(TAG, "unpacked " + screen.id + "/" + screen.rank);
+        ContentValues values = new ContentValues();
+        values.put(WorkspaceScreens._ID, screen.id);
+        values.put(WorkspaceScreens.SCREEN_RANK, screen.rank);
+        return values;
     }
 
     /** Serialize an icon Resource for persistence, including a checksum wrapper. */
@@ -858,7 +927,7 @@
      * in that case, do a full backup.
      *
      * @param oldState the read-0only file descriptor pointing to the old journal
-     * @return a Journal protocol bugffer
+     * @return a Journal protocol buffer
      */
     private Journal readJournal(ParcelFileDescriptor oldState) {
         Journal journal = new Journal();
@@ -867,38 +936,50 @@
         }
         FileInputStream inStream = new FileInputStream(oldState.getFileDescriptor());
         try {
-            int remaining = inStream.available();
-            if (DEBUG) Log.d(TAG, "available " + remaining);
-            if (remaining < MAX_JOURNAL_SIZE) {
-                byte[] buffer = new byte[remaining];
+            int availableBytes = inStream.available();
+            if (DEBUG) Log.d(TAG, "available " + availableBytes);
+            if (availableBytes < MAX_JOURNAL_SIZE) {
+                byte[] buffer = new byte[availableBytes];
                 int bytesRead = 0;
-                while (remaining > 0) {
+                boolean valid = false;
+                while (availableBytes > 0) {
                     try {
-                        int result = inStream.read(buffer, bytesRead, remaining);
+                        // OMG what are you doing? This is crazy inefficient!
+                        // If we read a byte that is not ours, we will cause trouble: b/12491813
+                        // However, we don't know how many bytes to expect (oops).
+                        // So we have to step through *slowly*, watching for the end.
+                        int result = inStream.read(buffer, bytesRead, 1);
                         if (result > 0) {
-                            if (DEBUG) Log.d(TAG, "read some bytes: " + result);
-                            remaining -= result;
+                            availableBytes -= result;
                             bytesRead += result;
+                            if (DEBUG && (bytesRead % 100 == 0)) {
+                                Log.d(TAG, "read some bytes: " + bytesRead);
+                            }
                         } else {
-                            // stop reading ands see what there is to parse
-                            Log.w(TAG, "read error: " + result);
-                            remaining = 0;
+                            Log.w(TAG, "unexpected end of file while reading journal.");
+                            // stop reading and see what there is to parse
+                            availableBytes = 0;
                         }
                     } catch (IOException e) {
-                        Log.w(TAG, "failed to read the journal", e);
+                        Log.e(TAG, "failed to read the journal", e);
                         buffer = null;
-                        remaining = 0;
+                        availableBytes = 0;
+                    }
+
+                    // check the buffer to see if we have a valid journal
+                    try {
+                        MessageNano.mergeFrom(journal, readCheckedBytes(buffer, 0, bytesRead));
+                        // if we are here, then we have read a valid, checksum-verified journal
+                        valid = true;
+                        availableBytes = 0;
+                    } catch (InvalidProtocolBufferNanoException e) {
+                        // if we don't have the whole journal yet, mergeFrom will throw. keep going.
+                        journal.clear();
                     }
                 }
                 if (DEBUG) Log.d(TAG, "journal bytes read: " + bytesRead);
-
-                if (buffer != null) {
-                    try {
-                        MessageNano.mergeFrom(journal, readCheckedBytes(buffer, 0, bytesRead));
-                    } catch (InvalidProtocolBufferNanoException e) {
-                        Log.d(TAG, "failed to read the journal", e);
-                        journal.clear();
-                    }
+                if (!valid) {
+                    Log.w(TAG, "failed to read the journal: could not find a valid journal");
                 }
             }
         } catch (IOException e) {
@@ -968,7 +1049,9 @@
         FileOutputStream outStream = null;
         try {
             outStream = new FileOutputStream(newState.getFileDescriptor());
-            outStream.write(writeCheckedBytes(journal));
+            final byte[] journalBytes = writeCheckedBytes(journal);
+            if (DEBUG) Log.d(TAG, "writing " + journalBytes.length + " bytes of journal");
+            outStream.write(journalBytes);
             outStream.close();
         } catch (IOException e) {
             Log.d(TAG, "failed to write backup journal", e);
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 7adbade..5676a9a 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -138,9 +138,10 @@
         if (values == null) {
             throw new RuntimeException("Error: attempting to insert null values");
         }
-        if (!values.containsKey(LauncherSettings.Favorites._ID)) {
+        if (!values.containsKey(LauncherSettings.BaseLauncherColumns._ID)) {
             throw new RuntimeException("Error: attempting to add item without specifying an id");
         }
+        helper.checkId(table, values);
         return db.insert(table, nullColumnHack, values);
     }
 
@@ -271,6 +272,7 @@
         SharedPreferences sp = getContext().getSharedPreferences(spKey, Context.MODE_PRIVATE);
 
         if (sp.getBoolean(EMPTY_DATABASE_CREATED, false)) {
+            Log.d(TAG, "loading default workspace");
             int workspaceResId = origWorkspaceResId;
 
             // Use default workspace resource if none provided
@@ -882,6 +884,15 @@
             mMaxItemId = id + 1;
         }
 
+        public void checkId(String table, ContentValues values) {
+            long id = values.getAsLong(LauncherSettings.BaseLauncherColumns._ID);
+            if (table == LauncherProvider.TABLE_WORKSPACE_SCREENS) {
+                mMaxScreenId = Math.max(id, mMaxScreenId);
+            }  else {
+                mMaxItemId = Math.max(id, mMaxItemId);
+            }
+        }
+
         private long initializeMaxItemId(SQLiteDatabase db) {
             Cursor c = db.rawQuery("SELECT MAX(_id) FROM favorites", null);
 
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 2ce9eb3..359fd86 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -4051,7 +4051,13 @@
             } else {
                 cellLayout = getScreenWithId(mDragInfo.screenId);
             }
-            cellLayout.onDropChild(mDragInfo.cell);
+            if (cellLayout == null && LauncherAppState.isDogfoodBuild()) {
+                throw new RuntimeException("Invalid state: cellLayout == null in "
+                        + "Workspace#onDropCompleted. Please file a bug. ");
+            }
+            if (cellLayout != null) {
+                cellLayout.onDropChild(mDragInfo.cell);
+            }
         }
         if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful))
                 && mDragInfo.cell != null) {