http://youtu.be/pQpr3W-YmcQ Here is a tutorial on how to make your own multi touch pad in 15 minutes using a web cam, cardboard box, a piece of glass and software. And here is a tutorial on how to make your own touch wall using the same setup looking even better! More information about this do it yourself kit can be found on update: Here is another tutorial which might work even better: http://www.instructables.com/id/How-to-build-a-Multi-Touch-surface/