      *  @playerversion AIR 2.5
      *  @productversion Flex 4.5
      */ 
-    public function get canCancelBackKeyBehavior():Boolean
-    {
-        return false;   
+    public function get exitApplicationOnBackKey():Boolean
+    {
+        return true;   
     }
     
     /**

        {
            backKeyEventPreventDefaulted = event.isDefaultPrevented();
            
            if (canCancelBackKeyBehavior)
                event.preventDefault();
        }
        else if (key == Keyboard.MENU)

        
        // The backKeyEventPreventDefaulted key is always set in the
        // deviceKeyDownHandler method and so doesn't need to be reset.
        if (key == Keyboard.BACK && !backKeyEventPreventDefaulted && !exitApplicationOnBackKey)
            backKeyHandler();
        else if (key == Keyboard.MENU && !menuKeyEventPreventDefaulted)
            menuKeyHandler(event);
