After iTunes 9.0.2 and the firmware upgrade for Apple TV 3.0 appeared, Apple also updated their Remote application. There are now new functions, only bugfixes. They also added the compatibility with iTunes 9 and Apple TV 3. Remote enables you to control music on your Apple TV or computer with your iPhone. The iPhone (or iPod touch) shows the buttons.
The application works via Wi-Fi, so it’s possible to control your music from everywhere in your home. Remote is available in several different languages.
If you don’t have Remote yet, go to the [App Store] and get the free application.Google+