It's the 360 version of Wii motion controls. But it has full body motion capture, facial and voice recognition. It was actual pretty cool to see the demo where a guy navigated through the dashboard just with a swipe of his hand.
Overall though, I'm still not entirely sold on motion games. I can see myself doing it from time-to-time but I mostly enjoy the comfort of being able to lounge on a couch and relax and play a game after a long day of work and other stuff.
I also a Wii and the Wii games I enjoy the most are the ones that have almost no motion gameplay like: Super Paper Mario, Galaxy, and now Punchout.