Yop,
just ran into this buzz : http://www.leapmotion.com/
Rather impressive, kinda crossover between touchscreen and motion tracking, seems precise and cheap... a dream ?
They allow pre-ordering, but moreover they opened a free dev evaluation kit subscription.
I'm no real programmer.
But maybe is there some curious developper on this forum that'll be interested in studying the way people like me will be able to use this controller with puredata !?
Nau