Solar RISCOS Computer
A reader sent in a link to an ultra-low-power RISCOS computer designed to be powered by a single small solar panel. They're aiming for a complete system which draws only 8.5 watts, which would be incredible if they can manage it.
Here is the real one:
Click here
or for you cut/pasters:
http://www.explan.co.uk/hardware/solo.shtml
-Hyperbolix