Virtual Keyboard?

This has to be one of the coolest things I've seen in a long time. It's a very small gadget for phones or PDA's (and it looks like it can be embedded into them as well) that uses lasers and inferred to project a full sized keyboard onto a flat surface. If this really works as well as it's supposed to, this would eliminate the painful process of inputting data into your PDA which, in all fairness, was made to have data input into it. I really can't wait to find out if this really works.