I am currently using a simulator (Microsoft Simulation Framework) to simulate multiple mouse devices and pass x,y coordinates from the Kinect for each person to a specific simulated mouse device. However, the simulator can simulate any generic hid device (devices that have a device driver by default in windows). I almost finished it except that I am having a weird bug trying to send the input report or x,y coordinates. Take a look here: http://kinectmultipoint.codeplex.com.
Note: the landing page may not be pretty because the project is still in progress. Anyone at least partially knowledgeable in coding device drivers and variants in c++ take a look at dsf mouse wrapper library c++ link in the downloads section. I prefer you ask questions on the project page forum at the link above
