This is just a quick update for those following along with the Minimum Blimp UAV project. We've modded a toy RC blimp and created our own Arduino clone PCB (complete with motor controllers and ports). Here are the PCB files and source code:
file format) is here
--PCB etch file is here
--Arduino source code is here
Next up: a new PCB that's smaller and integrates the IR sensors. Just as soon as I learn how to use the Eagle software properly....