Cool multi-touch Microsoft Research project

I love multi-touch technology and cannot wait until it becomes ubiquitous. But we haven't seen the last of it yet! This really cool technology demo of recent multi-touch research at Microsoft presented at Microsoft TechFest 2009, shows that stunning ideas are possible by stopping to think of a display as a 2D plane which passively sits in front of you on your desk. I'll put one of those on my wish-list.