Our team programs in Java and I was just looking over some of the new Kinect Classes and Methods. You have to install the netbeans plugins to get the api for these methods and to use them, you can download the plugins here ::
FRC 2012 Netbeans Plugins. There is a Kinect Object that you can create which you can call ethods getPosition and getSkeleton. Which will allow you to get various points on the persons body. That a brief overview that I've come across so far. Also there is a Kinect SDK you can dowload as well
here. I haven't looked into that because you need windows 7 to install it and I'm at my XP computer. AS far as other documentation you should be able to find some more on FIRST's website and possibly microsofts's as well, although the Java API for FRC has alot of information on it.