These are copies(same form factors) of arduino Uno's and Mega's with 4
times faster processors. They are $10 more and run at 80mhz instead of
16mhz! They also run on the same arduino software environment but with
a small free software mod available on May 21st. Very cool for
processing intensive projects.
http://www.digilentinc.com/Products/Catalog.cfm?NavPath=2,892&Cat=18