Originally Posted by brandonraw
3) Does this method work seamlessly like Bluetooth does? Whereas you pair and set it up once then all your sound from videos, games, music, and all apps gets streamed, or is it done only on an individual basis like when you launch a video, you then have to touch the airplay button and select the airport as the device each time?
Every time you connect to a network with an AirPlay device, a symbol appears next to your play/pause controls that lets you select the output device. As long as the connection to the AirPlay device is maintained (WiFi doesn't drop out), your iOS device will continue to play to it. When the connection drops, it will redirect to headphones or internal audio, and continue to play there until the AirPlay device becomes available and you manually pick it again.
As of iOS 5 (the newest on my iPod Touch 3rd gen) each app must allow you to redirect the audio on its own, it's not system-wide. This is actually a benefit, because music can go to your stereo while game sounds stay on your device. (They may
have added device-wide audio redirection to AirPlay on iOS 6, but I might just be thinking of OS X 10.8.)