Wombat was an experimental flight computer with a powerful onboard microcontroller, integrated programmable-frequency radio and uBlox 6 GPS. We used it as a test bed for a number of new ideas.
Technical details:
All the gory details (schematic, board files, code and so on) are available on github: http://github.com/cuspaceflight/wombat
The beautiful PCBs for wombat r1 were provided by Cambridge Circuit Company, thanks!