Light Touch Projector

I know they're only computer generated graphics, but maybe it's a bit miss-leading as to how it will actually look. Particularly like this

http://thesupergoodlife.com/2011/09/08/light-touch-projector...

Assuming the projector is mounted in the shelf, there would be quite a large shadow under where she is touching the wall. I guess the implications of this on such a small screen would be you'd have to pretty much figure out what you were going to press before you put your hand in front of the beam.

We have Promethean IWB's and short throw projectors at school, trying to use them with your finger for precise menu operations is a nightmare. I think there used to be a keyboard that did something similar but it had terrible reviews

It's a laser projector combined with a camera. Nice but nothing revolutionary. You can build something like this yourself using e.g. a Microvision ShowWX+ ($300), a webcam and some mirrors. No need to wait for a device that might be commercially available sometime in the future at an unknown price point.

Also check out their Light Speed, a pretty cool product for cars: http://lightblueoptics.com/products/light-speed/

That looks ike a pretty good idea for bars or restaurants, nothing really to spill food or drink on.

Could be some cool wireless thin-clients.

Looks like this was showcased at CES 2010.