Cool - do check out Kinect though. There was a rumor at one point that MS would raise the resolution of the captured video through a firmware update, which would be nice, but otherwise it's still a gigantic improvement over a video frame as you get depth. There's a video out there of someone who used two Kinect cameras to do full scene reconstruction in real-time; they were just using it to allow you to see an object from more than one point of view, but imagine having one Kinect fixed in space, and it being able to track the location of a second Kinect camera; instant room reconstruction as you move the second Kinect around (without needing to extract motion)!
That's all nice for authoring, but I still haven't seen nice gameplay tied to Kinect (or Move) that isn't just some form of puppeteering. It will come.