Attacking my first idea as a scam...

[Iggy]

I see hope in simpler FPGA devices like Grant's MultiComp.

http://searle.hostei.com/grant/Multicomp/

With a few additional chips this could do something like what you are suggesting.

[Iggy]

And yet only the Armiga has bothered to include a floppy drive on their proposed new Classic Amiga. All the FPGA based ones have ignored floppys and gone with flash storage devices only. That's because you don't have to be a masochist to like old computers, if there's a way to make the "old computer" better then why not do it. Hard drives and optical drives are getting rarer as flash storage gets cheaper and the cloud looms larger.

I'm not worried about the availability of hard drives or optical media, but floppies?
Heck, they don't even make 5 1/4" floppies anymore and 3 1/2 " floppies are getting harder to get.
With their high capacity, flash cards are the only thing that makes sense.

[Iggy]

Yet no serious retro gamer would ever use an old 8/16-bit system with an LCD.  Flash carts on the other hand are very useful

Between this and the comment about the C64, you've managed to alienate me.
Who gives a ...

[Iggy]

I no longer dream in C64 and never dreamed in MSX.

Personally, I never had much use for the C64, but genlockable MSX video still interests me.