iOS > AirPlay > Creating a Dual-Screen AirPlay Experience for iOS and Apple TV
http://blog.redfin.com/devblog/2012/05/creating_a_dual-screen_airplay_experience_for_ios_and_apple_tv.html
iOS, Android, Unity3D Education blog,
http://blog.redfin.com/devblog/2012/05/creating_a_dual-screen_airplay_experience_for_ios_and_apple_tv.html