writes "Microsoft has given more information on the Kinect SDK to be release later in the year. The good news is that it does include the body tracking software that is used by the Xbox version of the Kinect. This should allow PC experimenters to track up to two people at the same time and stay locked on to them if they leave and re-enter the frame.
Better body tracking is going to open up what the Kinect can do but in addition they promise to allow the microphone array to be used with the PC's speech recognition API. So not only will future Kinect projects be able to track you — they can listen to what you say."Link to Original Source