Have you heard the phrase live and let live? You should listen to it. You need to look past your bias, I could easily re wright your post about Apple or Microsoft.
I can’t see tilting head to walk working. That would be like combining the two thumb-sticks, it would be like going back to Golden eye (N64).
I also can’t see people buying Omnidirectional treadmills either though. With the Kinect you could mimic those mats you use have for those dance games. So something to the effect of you put a leg in the direction you want to walk in the game.
Interaction with the game world is still tricky, you have limited feed back currently. Who wants to get working on “feed back gloves” which lets you hold and feel items in games?
