Thanks! It's already gs-compatible, when connected to the daisy chain board from an external Apple 3.5 drive - see uniserver's experiments in a separate thread. I think the IIe and IIc use a different floppy interface, though.

Anyone know if the non-Twiggy Lisa uses the same drive mechanism as the Mac? If so, then Floppy Emu could theoretically work on a Lisa, if the firmware were updated to support tags (extra data on the floppy that's not part of the sector itself).