The Rascal is a small, open-source computer designed for connecting sensors, motors, and whatever else you can build to the internet. It's about 5 cm x 10 cm (2 inches by 4 inches).
The fourth production batch of Rascals is now up for sale. These are the second run of hardware version 1.3, which is nearly identical to version 1.2, but some of the capacitor footprints were modified slightly to prevent solder bridging. These Rascals ship with the new Cooties software release.
Now $50 off (25% discount), until this batch is gone!
Update: all gone! Rascal 2 coming soon!