This is a v1 board. Shown before I'd added the MMC port. It is designed to plug onto the Atom's PL8 connector, which should make it easier for people without the 6522 expansion to use as the only mod to be done is adding the connector.

Impure! It uses a PIC, after the work done by Rob Coleman.
This is the test rig used to do the initial debugging. Oh and did I mention that it's about 10x faster than the 6522-bit-banger??