I don't know if this is the right place for posting this question...
I have built a rear DI multitouch table and I'm using "community core vision" software to track finger blobs and "multi-touch vista hid" driver to translate tuio messages into win7 touch points.
Next step would be the use of fiducials to perform some basic OS actions as for i.e. setting up the volume.
does anyone have some hints or links where to find some material to start with?