I've not only seen one, i'm using the one i got for my birthday earlier this year. Really strange at the start but after that its cool and gives you so much more desk space. If you can afford to throw away that amount of money, its a good buy :P
Location: Somewhere between the Real World and Tyria ;P
Guild: The Gothic Embrace [Goth]
Do your fingertips get sore since the desk doesn't click down with each tap lke a key does? Also since the keyboard is not elevated, does it hurt your wrists to type long?
I've seen it on Richard Hammond's 5 o'clock show once but that show doesn't run anymore. It's a cool gadget but I'm wondering what it's reaction speed is like, because I can type at a pretty good pace and I wouldn't like if my sentences wound up with letters missing all over the place...