Word on the street is the RaspberryPI ARM based development boards are shippping. Now I'll believe that when I see it, but if the news outlets are right I should be seeing mine in the next week or so.
What is the Raspberry PI? It's an ARM based single board computer capable to running an ARM compiled version of Debian Linux.
There's way more on the Raspberry PI on their website here.
My plan, should the one I order arrive in a reasonable period of time, is to build a simple interface between it and my DIY USB Chessboard. The end result being I would be able to play a game against different open source engines, without powering up my computer. In fact, since the RaspberryPI is so small I might be able to attach it directly to a future board.
We'll see how that goes, in the meantime enjoy the link and watch the videos, it's interesting stuff for sure.