While I scratch my beard and look around the web for ways to go, I’d appreciate any advice for OS X users wanting to do stuff in the browser with Kinect.
Update: Looks like there is a stack of technologies I can use called OpenNI/NITE. I installed the whole stack including USB support with a plugin that is supposed to make it accessible to the browser. The plugin is called Zigfu, but I couldn’t get that to work. I could get the tracking to work however: