Ok, so this was 4 years ago. But its still pretty damn cool!
I expect that a lot of what I post may be 'old news' to some. But if its new to me and I think its cool, then Im going to share.
This was apparently something that you could by from MIT called "Assist Sketch Understanding System and Operation". I wasnt able to find it right away, but there is something similar that is more readily available for Tablet PC. (but who has one of those?)
Meh, go have fun with linerider!