I look at the Microsoft research website often for updates and remember that this was posted on On10 before now, not that I am complaining, I would just like to say that I downloaded this application and although at first I didn't feel I had much of a need for it I have been using it more and more. I reccomend anybody with a tablet download this app.
(P.S. If the developer of this software is reading, unlikely I know, I would just like to give kudos, it's really nice to see that new methods of interaction are still a priority to some people, I am not sure if a commercial product would ever have success but it is still very nice to use)