These things are cool!

FogScreen is a break-through technology, literally! FogScreen allows projection of high quality images in the air. It is the only currently available walk-through projection screen, based on our proprietary technology.

With our new interactive add-on you can also use the air as your user interface. Operate computers by touching only the air with your bare hand. Write and draw in the air - this is science fiction, available today.

I don't really know what I'd do with one of these things.... and I'm sure I can't afford one....

But it sure would be fun to play with one for a while.