Multi-touch interfaces

A friend just sent me this video of an awesome demonstration of a wall-based direct graphic multi-touch interface. I'm not entirely sure what it would be used for other than working with images and possibly some modelling (I preferr a real tactile keyboard when typing), but I do know that this is a sign that the future is now.
Cool things are happening, and slowly but surely they are being brought out in the lime light.
I even heard someone has flying cars available for preorder.
Anyway, check this cool demonstration out. It will blow your socks off!