I'm sure if third parties really tweaked the system they could make the games look slightly better than 360 stuff.
That said ... why even go through all this headache, Nintendo?
They should've just thrown a E6760 in the box or something like that. PC architecture would be a no brainer for developers, it still has low power consumption, and EAD's groups don't even use the full power of the 3DS or Wii U anyway, so who cares. They'd make great games if you forced them to go work on the SNES chip again.
Honestly though they should've just made a "PC-in-a-box". Fine it for console performance of course, but that's basically what developers want. If they had that, IMO they don't have a software drought right now.
And it's not like you get some cookie for having a propietary architecture.
