Just a quick share on something that made me very happy this week (that’s what happens when the wife is not around): Enabling AirPlay on a non-apple device to stream both music as well as video to my Boxee (on an Xtreamer Ultra Linux box).
Pascal Widdershoven has published a really simple and quick to install script here: Airplayer
Albert Zeyer has the equivalent one for playing audio: Shairport
Installation of both is fairly straightforward (just read the readme/install files) and worked flawlessly on my rig. Have fun!