Yea, my thoughts were along the lines of what amiman99 said. It's still a PC FDD with a custom controller, but the drives in the Amiga were 'special'. If I had to venture a guess it's probably part of the issue with reading copy protected disks.
It'd really be worthwhile if I could take some of the games I purchased way back when, plug them in an be able to play them again. But that isn't really what it is.
~S