Jog in place, wii sensor, we're one step closer jog around the room, virtual raquetball! - http://www.youtube.com/watch...
I have identified 3 things, I expect will be the killer app for 3d worlds. 1. Move around the room gaming for true cardio. 2. Putting streaming video of your face on the avatar, for virtual gatherings. 3. 120hz 3D HD projector display with glasses(maybe cams in the glasses, could reconstitute your eye movements on the avatar).
- David Lynch