I'm interested.
For 50€/piece I might get 4 of them (SD based version, that does not need x86 PC at all).
Can it simulate 4 floppy drives at the same time?
Is it possible to do hard disk imitation/emulation with it? (productivity use, replacement for A590etc...)
btw... here's another (so far not noticed a link to this here)
http://www.sensi.org/~tnt23/megadrive/