P.S. getting tired of the speculation about what is going to happen to the chip (or peoples cars or their paypal accounts) so I put the donations towards a used oscilloscope.
Edit: also this did not start out as a finished product suitable for permanent installation or for production, it was intended to be a simple to assemble and inexpensive DIY MPG gauge that would be useable ASAP, which would undergo several software upgrades during its lifetime so that the nice folks actually doing the software would not be overburdened by deliverables and deadlines. My wife is already using hers to good effect, and is bugging me for the large number font thing
Edit: She is running the very first mpguino pictured in post 1, has been for weeks now.