This technology seems kinda fake to me. If you refer back to E3 where they first showcased the device, there were several odd and unexplained things going on.
1) The twitchy avatar character shown (especially when the guy tried to show the bottom of his shoe and couldn't.) seemed to show that the technology wasn't really complete.
2) The other presenters wore dark clothing that seemed to contrast better with their surroundings. Yet, the people in the promotional video wore more colorful clothing.
3) The device only seemed to be able to detect only wide movement and not subtle movement like the promotional video suggested.
4) Most core gamers would like to take advantage of this technology. However, most gamers like to play in dark rooms. It seems to me that it'll be more difficult for this camera to adjust to harsh lighting conditions (dark rooms, lens flare, moving background lights, etc.).
5) It didn't feel as though the camera could decipher between more than one person, because no one (presenters or journalist in the closed room) tried to test it with that in mind. Sure it could detect more than one person; but could it tell the difference between the two?
6) Where are the games that utilize this technology? It seemed that all that was available were tech demos. I'd very much like to see this technology put to use in actual real time environments instead of controlled environments. It gives me the sense that this project is a little premature and may not see the light of day for a long time.