My friend Chris and I were palying with my iPod Touch at school today and he brought up a really good idea. It was an application that was a virtual 3D world that you could look around in by moving ur ipod as if it is a lens into another world. Like if you're holding up ipod and you turn left, you will to your left in this virtual world. I think it's a cool concept and shouldn't be too hard with accelerometers. Someone please make this kind of thing, It could possibibly develop into a cool FPS for the iPod Touch.