I can't believe that there isn't a thread about this.... (Just did a search, could be I missed it somehow)
Have you pre-ordered yours yet? If you haven't why not? ;P
www.raspberrypi.org
Just for clarification, it's a credit card sized 700MHz ARM computer with 256MB of RAM, ethernet, 2 USB ports and an SD card slot.
I ordered one this morning, I don't think I'll see it any time soon though ;D