Hi guys,
I just read that an official kinect driver was released with a full spec of the api:
http://www.openni.org/ (currently under heavy load)
There is only a driver for linux and windows, but the driver gives you full access to the depth, video and audiosensors.
Also there is supossed to be a whole lot of documentation under the url.
the driver is released by prime sense, a company that developed the kinect tgether with microsoft.
The source I got that info from is http://www.golem.de/1012/80103.html (unfortunately german)
Cheers,
Snoogie
EDIT:
I just read on another page, that you have access to the NITE Middleware. Information about that can be found here http://www.primesense.com/?p=515
I seems to me that this a simple way to turn the info into a skeleton model.