They would have to touch up the graphics. The DS games would like shit if you blew them up to full-screen.
ZUUUUUUUUH??? NES games look amazing on my 52" HDTV. So long as no filters are applied, things look peachy-keen.
So, I'd imagine DS games looking fantastic also.
Anyway, Nintendo seems to have almost entirely dropped the VC service in the US in regard to new releases. Barely anything comes out, and it's mostly stuff I couldn't be arsed about. Although
Mega Man X came out this past week, so that's something cool at least. I don't own a physical copy of it, and the emulation on the PS2 collection is kinda wonky, so I may buy it eventualalally.