diff --git a/res/values-en/dimens.xml b/res/values-en-sw340dp/dimens.xml
similarity index 99%
rename from res/values-en/dimens.xml
rename to res/values-en-sw340dp/dimens.xml
index 01d4693..96d5304 100644
--- a/res/values-en/dimens.xml
+++ b/res/values-en-sw340dp/dimens.xml
@@ -4,9 +4,9 @@
      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.
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index c180d32..95300c1 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -28,6 +28,7 @@
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.MotionEvent;
+import android.view.ViewConfiguration;
 import android.widget.TextView;
 
 /**
@@ -60,6 +61,8 @@
     private int mPressedOutlineColor;
     private int mPressedGlowColor;
 
+    private float mSlop;
+
     private int mTextColor;
     private boolean mShadowsEnabled = true;
     private boolean mIsTextVisible;
@@ -272,6 +275,11 @@
 
                 mLongPressHelper.cancelLongPress();
                 break;
+            case MotionEvent.ACTION_MOVE:
+                if (!Utilities.pointInView(this, event.getX(), event.getY(), mSlop)) {
+                    mLongPressHelper.cancelLongPress();
+                }
+                break;
         }
         return result;
     }
@@ -356,6 +364,7 @@
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         if (mBackground != null) mBackground.setCallback(this);
+        mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
     }
 
     @Override
diff --git a/src/com/android/launcher3/FolderIcon.java b/src/com/android/launcher3/FolderIcon.java
index 71a7461..25c4962 100644
--- a/src/com/android/launcher3/FolderIcon.java
+++ b/src/com/android/launcher3/FolderIcon.java
@@ -33,6 +33,7 @@
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewConfiguration;
 import android.view.ViewGroup;
 import android.view.animation.AccelerateInterpolator;
 import android.view.animation.DecelerateInterpolator;
@@ -105,6 +106,8 @@
     boolean mAnimating = false;
     private Rect mOldBounds = new Rect();
 
+    private float mSlop;
+
     private PreviewItemDrawingParams mParams = new PreviewItemDrawingParams(0, 0, 0, 0);
     private PreviewItemDrawingParams mAnimParams = new PreviewItemDrawingParams(0, 0, 0, 0);
     private ArrayList<ShortcutInfo> mHiddenItems = new ArrayList<ShortcutInfo>();
@@ -386,7 +389,7 @@
 
     public void performDestroyAnimation(final View finalView, Runnable onCompleteRunnable) {
         Drawable animateDrawable = ((TextView) finalView).getCompoundDrawables()[1];
-        computePreviewDrawingParams(animateDrawable.getIntrinsicWidth(), 
+        computePreviewDrawingParams(animateDrawable.getIntrinsicWidth(),
                 finalView.getMeasuredWidth());
 
         // This will animate the first item from it's position as an icon into its
@@ -703,11 +706,22 @@
             case MotionEvent.ACTION_UP:
                 mLongPressHelper.cancelLongPress();
                 break;
+            case MotionEvent.ACTION_MOVE:
+                if (!Utilities.pointInView(this, event.getX(), event.getY(), mSlop)) {
+                    mLongPressHelper.cancelLongPress();
+                }
+                break;
         }
         return result;
     }
 
     @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
+    }
+
+    @Override
     public void cancelLongPress() {
         super.cancelLongPress();
 
diff --git a/src/com/android/launcher3/LauncherAppWidgetHostView.java b/src/com/android/launcher3/LauncherAppWidgetHostView.java
index 51a649a..f47fd13 100644
--- a/src/com/android/launcher3/LauncherAppWidgetHostView.java
+++ b/src/com/android/launcher3/LauncherAppWidgetHostView.java
@@ -21,6 +21,7 @@
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewConfiguration;
 import android.view.ViewGroup;
 import android.widget.RemoteViews;
 
@@ -36,6 +37,8 @@
     private int mPreviousOrientation;
     private DragLayer mDragLayer;
 
+    private float mSlop;
+
     public LauncherAppWidgetHostView(Context context) {
         super(context);
         mContext = context;
@@ -90,6 +93,11 @@
             case MotionEvent.ACTION_CANCEL:
                 mLongPressHelper.cancelLongPress();
                 break;
+            case MotionEvent.ACTION_MOVE:
+                if (!Utilities.pointInView(this, ev.getX(), ev.getY(), mSlop)) {
+                    mLongPressHelper.cancelLongPress();
+                }
+                break;
         }
 
         // Otherwise continue letting touch events fall through to children
@@ -104,11 +112,22 @@
             case MotionEvent.ACTION_CANCEL:
                 mLongPressHelper.cancelLongPress();
                 break;
+            case MotionEvent.ACTION_MOVE:
+                if (!Utilities.pointInView(this, ev.getX(), ev.getY(), mSlop)) {
+                    mLongPressHelper.cancelLongPress();
+                }
+                break;
         }
         return false;
     }
 
     @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
+    }
+
+    @Override
     public void cancelLongPress() {
         super.cancelLongPress();
         mLongPressHelper.cancelLongPress();
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index bedd440..044ddbb 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -499,7 +499,9 @@
         }
 
         // Clear any deferred bind runnables
-        mDeferredBindRunnables.clear();
+        synchronized (mDeferredBindRunnables) {
+            mDeferredBindRunnables.clear();
+        }
         // Remove any queued bind runnables
         mHandler.cancelAllRunnablesOfType(MAIN_THREAD_BINDING_RUNNABLE);
         // Unbind all the workspace items
@@ -1316,7 +1318,9 @@
 
             // Clear any deferred bind-runnables from the synchronized load process
             // We must do this before any loading/binding is scheduled below.
-            mDeferredBindRunnables.clear();
+            synchronized (mDeferredBindRunnables) {
+                mDeferredBindRunnables.clear();
+            }
 
             // Don't bother to start the thread if we know it's not going to do anything
             if (mCallbacks != null && mCallbacks.get() != null) {
@@ -1338,10 +1342,15 @@
     void bindRemainingSynchronousPages() {
         // Post the remaining side pages to be loaded
         if (!mDeferredBindRunnables.isEmpty()) {
-            for (final Runnable r : mDeferredBindRunnables) {
+            Runnable[] deferredBindRunnables = null;
+            synchronized (mDeferredBindRunnables) {
+                deferredBindRunnables = mDeferredBindRunnables.toArray(
+                        new Runnable[mDeferredBindRunnables.size()]);
+                mDeferredBindRunnables.clear();
+            }
+            for (final Runnable r : deferredBindRunnables) {
                 mHandler.post(r, MAIN_THREAD_BINDING_RUNNABLE);
             }
-            mDeferredBindRunnables.clear();
         }
     }
 
@@ -2368,7 +2377,9 @@
                     }
                 };
                 if (postOnMainThread) {
-                    deferredBindRunnables.add(r);
+                    synchronized (deferredBindRunnables) {
+                        deferredBindRunnables.add(r);
+                    }
                 } else {
                     runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE);
                 }
@@ -2385,7 +2396,9 @@
                     }
                 };
                 if (postOnMainThread) {
-                    deferredBindRunnables.add(r);
+                    synchronized (deferredBindRunnables) {
+                        deferredBindRunnables.add(r);
+                    }
                 } else {
                     runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE);
                 }
@@ -2507,7 +2520,9 @@
 
             // Load all the remaining pages (if we are loading synchronously, we want to defer this
             // work until after the first render)
-            mDeferredBindRunnables.clear();
+            synchronized (mDeferredBindRunnables) {
+                mDeferredBindRunnables.clear();
+            }
             bindWorkspaceItems(oldCallbacks, otherWorkspaceItems, otherAppWidgets, otherFolders,
                     (isLoadingSynchronously ? mDeferredBindRunnables : null));
 
@@ -2529,7 +2544,9 @@
                 }
             };
             if (isLoadingSynchronously) {
-                mDeferredBindRunnables.add(r);
+                synchronized (mDeferredBindRunnables) {
+                    mDeferredBindRunnables.add(r);
+                }
             } else {
                 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE);
             }
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 9a004f2..e43b727 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -75,7 +75,7 @@
 
     private static final String DATABASE_NAME = "launcher.db";
 
-    private static final int DATABASE_VERSION = 18;
+    private static final int DATABASE_VERSION = 19;
 
     static final String OLD_AUTHORITY = "com.android.launcher2.settings";
     static final String AUTHORITY = ProviderConfig.AUTHORITY;
@@ -503,10 +503,34 @@
         }
 
         private void removeOrphanedItems(SQLiteDatabase db) {
-            db.execSQL("DELETE FROM " + TABLE_FAVORITES + " WHERE " +
+            // Delete items directly on the workspace who's screen id doesn't exist
+            //  "DELETE FROM favorites WHERE screen NOT IN (SELECT _id FROM workspaceScreens)
+            //   AND container = -100"
+            String removeOrphanedDesktopItems = "DELETE FROM " + TABLE_FAVORITES +
+                    " WHERE " +
                     LauncherSettings.Favorites.SCREEN + " NOT IN (SELECT " +
-                    LauncherSettings.WorkspaceScreens._ID + " FROM " + TABLE_WORKSPACE_SCREENS +
-                    ")");
+                    LauncherSettings.WorkspaceScreens._ID + " FROM " + TABLE_WORKSPACE_SCREENS + ")" +
+                    " AND " +
+                    LauncherSettings.Favorites.CONTAINER + " = " +
+                    LauncherSettings.Favorites.CONTAINER_DESKTOP;
+            db.execSQL(removeOrphanedDesktopItems);
+
+            // Delete items contained in folders which no longer exist (after above statement)
+            //  "DELETE FROM favorites  WHERE container <> -100 AND container <> -101 AND container
+            //   NOT IN (SELECT _id FROM favorites WHERE itemType = 2)"
+            String removeOrphanedFolderItems = "DELETE FROM " + TABLE_FAVORITES +
+                    " WHERE " +
+                    LauncherSettings.Favorites.CONTAINER + " <> " +
+                    LauncherSettings.Favorites.CONTAINER_DESKTOP +
+                    " AND "
+                    + LauncherSettings.Favorites.CONTAINER + " <> " +
+                    LauncherSettings.Favorites.CONTAINER_HOTSEAT +
+                    " AND "
+                    + LauncherSettings.Favorites.CONTAINER + " NOT IN (SELECT " +
+                    LauncherSettings.Favorites._ID + " FROM " + TABLE_FAVORITES +
+                    " WHERE " + LauncherSettings.Favorites.ITEM_TYPE + " = " +
+                    LauncherSettings.Favorites.ITEM_TYPE_FOLDER + ")";
+            db.execSQL(removeOrphanedFolderItems);
         }
 
         private void setFlagJustLoadedOldDb() {
@@ -810,14 +834,17 @@
             }
 
             if (version < 18) {
+                // No-op
+                version = 18;
+            }
+
+            if (version < 19) {
                 // Due to a data loss bug, some users may have items associated with screen ids
                 // which no longer exist. Since this can cause other problems, and since the user
                 // will never see these items anyway, we use database upgrade as an opportunity to
                 // clean things up.
-
-                // TODO: this needs to be fixed, currently causes data loss.
-                //removeOrphanedItems(db);
-                version = 18;
+                removeOrphanedItems(db);
+                version = 19;
             }
 
             if (version != DATABASE_VERSION) {
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index cbc9785..8deadf1 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -305,6 +305,17 @@
         return scale;
     }
 
+    /**
+     * Utility method to determine whether the given point, in local coordinates,
+     * is inside the view, where the area of the view is expanded by the slop factor.
+     * This method is called while processing touch-move events to determine if the event
+     * is still within the view.
+     */
+    public static boolean pointInView(View v, float localX, float localY, float slop) {
+        return localX >= -slop && localY >= -slop && localX < (v.getWidth() + slop) &&
+                localY < (v.getHeight() + slop);
+    }
+
     private static void initStatics(Context context) {
         final Resources resources = context.getResources();
         final DisplayMetrics metrics = resources.getDisplayMetrics();