      *  @playerversion AIR 2.5
      *  @productversion Flex 4.5
      */ 
-    protected function addApplicationListeners():void
+    private function addApplicationListeners():void
     {
         // Add device event listeners
         systemManager.stage.addEventListener(KeyboardEvent.KEY_DOWN, deviceKeyDownHandler);

        var ns:Namespace = appDescriptor.namespace();
        
        // TODO (chiedozi): See if reserving these keys is bad
        persistenceManager.setProperty("timestamp", new Date().getMilliseconds());
        persistenceManager.setProperty("applicationVersion", 
                                        appDescriptor.ns::versionNumber.toString());
    }

    }
    
    /**
     *  @private
     */ 
    private function deviceKeyDownHandler(event:KeyboardEvent):void
    {
        var key:uint = event.keyCode;
        
