Still having fun :)
However, I've been allowing this to slop around inside my head for a while, and I haven't really found an answer. I see 0 Ohm resistors (yes, zero) all over the place. For instance there are 11 zero ohm resistors on the AVR Butterfly.. Why??
My best guess is a Poor mans fuse?
Also, Why would they tie the "aref" pin 63 to the ADC port pin PF3, couple both to ground with with some bypass caps, and call it VCP? I don't know, just seems odd..