Raspberry Pi: A $25 ultra-low-cost computer that can run Quake 3

Hopefully this doesn't become abused as the new disposable-AOL-CD of our decade...

How would you use this for something that seemed cost-prohibitive before? (E.g., I can see this being useful in testing server/client systems or learning networking administration.)

straight to the website: http://www.raspberrypi.org/