I have been playing around with this small Raspberry Pi "box" for a few weeks now, and it's a lot of fun. It's not so much a "get business done" machine, but a simple $35 Linux computer that can fit almost anywhere, and run simple tasks using little power.
The Raspberry Pi was introduced in February in the UK, but has taken the hacker/maker/gadget/nerd world by storm. Right now my R-Pi is running xbmc, but I want to get another one set up to run OP25, but there are literally thousands of things you can do with a Raspberry Pi.
"Raspberry Pi and Ham Radio"