Looks nice but multiple flash adapter designs have appeared and disappeared previously...
It is nearly perfect if it also support following extra requirements: (also sent via email)
- 2M and 1M support.
- Standard in-circuit flashing protocol supported.
- Works exactly like ROM. No weird early boot rom selection menu stuff etc. I don't trust those and I also require that hardware state is 100% unmodified after reset. (aros m68k stuff for example)