Very interesting... for classical musicians or guitarists who are using the iPad as their sheet music platform, they can now turn pages using Bluetooth-enabled footswitches!
AirTurn's BT-105 footpedal is a real page turner (video) -- Engadget
[VIDEO]http://www.youtube.com/watch?v=siWJuJPGeeI]YouTube - A First Look at the AirTurn Bluetooth iPad Page Turner Prototype[/VIDEO]
That's pretty cool! I'll be making use of mine for lessons. I use Notion Progression, which I'll be dumping on the iPad via TabToolKit.