Really new user interfaces

We're lately seeing lot of things about 3D user interfaces. Windows Vista, Mac, Linux... All of them are preparing "cool" 3D effects (personally I think is a waste of resources to make something just more appealing but not more functional).

But what about really new user interfaces? What about a Minority Report or Johnny Mnemonic user interface, interactive with our hands?

This video it's really interesting...

This is hell of a new way of interacting with pcs, and not those fancy, stupid good-looking 3D effects in O.S.