AirPlay is a fantastic development for iOS device owners who also have Apple TVs. When the device and your ATV on the same wireless network, they will automatically detect each other. So it becomes true that watch your iPad 2 movies on HDTV with your friends. But, not all video formats can be playable on iPad 2. Wanna transfer home movies to iPad2, so can be playback on HDTV connecting to Apple TV via Airplay.