Today I was at the State Fair, and lo and behold they had a Kinect demonstration booth set up. I got in line, signed something for Microsoft (so that should go well), and got a scannable badge on a lanyard. After a moment, they slid the patio doors open and let me into the booth. A poorly-paid serf in a polo shirt did all the controlling, so I didn't get to mess with the menus and navigation. They also kept us moving along, so there wasn't much Q&A time.
I ran hurdles against the polo-serf; she explained that the unit senses where your knees are, and getting your knees higher means running faster. I also figured out, after running into the first two of three hurdles, that when they turn green, as you're approaching, that's when you need to stop running in place and just jump. For a system that's meant to be so intuitive you don't need a controller, that's... not that intuitive. I had expected some kind of jump that was integrated into the running, like you do.
On the way out, my badge was scanned, so I can visit www.kinect.me, enter the code, and see my video. I think I'm relieved that it appears to be fucked -- I'm not there. It was noon, and sunny, and the scanner wasn't working well. Maybe as I was asking the Cameron Question, the other serf got tired of my shenanigans.
(She was not knowledgable about the technology, but again, poorly-paid temp labor, I'm pretty sure)