There are a lot of reasons to love this, and the rest of the Kinect-hacking going on by a bunch of awesome like-minded types (@openkinect is doing a great job of aggregating) around the world. It’s open-source software iteration at the speed of human resourcefulness. I’d reckon the Microsoft engineers that built Kinect are chuckling to themselves at how quickly people are solving problems they had themselves.
But the reason I love it most is it feels like only a matter of days before someone puts together a fairly accurate motion-tracking airsoft turret to keep the cats off the couch.
(Also watch Theo & Emily’s Interactive Puppet Prototype.)