This thing uses Bluetooth technology to cast a laser image of a keyboard onto your desktop (or any other flat surface). To make it even cooler, the geniuses gave the "keys" an actual clicking sound when you touch them! It's $179.99 at ThinkGeek.com - maybe worth the bucks if you have a really cluttered desktop or if you use your cell phone and PDA for typing out messages to your friends.
The WOW factor among other geeks may be worth the dough too. Be the first in your Star Trek Support Group to get one!!