Why is this useful? If you ever want to see a band content to your friends on the iPad or iPhone without the crowd everyone around suddenly, the screen is too small, it is the solution. Now you can zap your videos on TV instead. Or if you listen to music with headphones and want to continue the song on the sound system for your home, you can too.
Not surprisingly, Apple's implementation of this feature is simple. When you iPad / iPhone / iPod Touch is connected to a wireless network with screening devices compatible (such as the Apple TV or audio system Denon, an additional icon appears near the control content. By clicking on the icon allows you to choose to continue to play the contents of the device in hand or you play on other devices listed in the pop-up There is no installation and not configure it for that it works, and works very well, although the distribution of audio content in the background note: ... Airplay only play videos that work in iTunes.
All applications that support video or audio can pass in the game devices compatible, which means that non-Apple applications like Pandora can be used to stream music to other devices on your wireless network. Better yet, high definition (720p) and a 5.1 surround sound supported, although the quality obviously depends on the source. Much of the content could even be executed in the background, so you can send that episodes of Tom & Jerry to the Apple TV to watch your children while you surf on your IPAD. There is a feeling of living in the present that comes with the ability to take content and adventure, wireless to your TV or stereo.
