This is pretty cool, but I have some thoughts.
For purely Mega Drive / Genesis / SMS / SG-1000 games Genesis GX is a better emulator base than Picodrive. It's more accurate, has better video and much better sound. However, like the SNES VC, it requires an N3DS and its faster CPU in order to run at full speed.
Picodrive is more versatile in that it can support full speed SMS / Megadrive across both O3DS and N3DS but requires an N3DS for Mega-CD, has no support for SG-1000 and needs CFW for 32X.
Basically I think what I'm trying to say is that I'd love to see a release using Genesis GX because whilst both cores are essential if you're a fan of these machines, N3DS users might enjoy the superior emulation the more accurate core provides for Mega Drive / SMS.
For purely Mega Drive / Genesis / SMS / SG-1000 games Genesis GX is a better emulator base than Picodrive. It's more accurate, has better video and much better sound. However, like the SNES VC, it requires an N3DS and its faster CPU in order to run at full speed.
Picodrive is more versatile in that it can support full speed SMS / Megadrive across both O3DS and N3DS but requires an N3DS for Mega-CD, has no support for SG-1000 and needs CFW for 32X.
Basically I think what I'm trying to say is that I'd love to see a release using Genesis GX because whilst both cores are essential if you're a fan of these machines, N3DS users might enjoy the superior emulation the more accurate core provides for Mega Drive / SMS.