Such a good idea that it seems like a no-brainer to me.
Saw a post about backwards compatibility... Was it nice for the GBA, DS, 3DS, Wii and Wii U? Yes, but if it holds them back on their next systems then I say screw it. They just need to add ability to transfer your VC collection (Wii, Wii U eshop and 3DS eshop VC games) to the new systems. WiiWare and other games can stay on whatever system they are on. Sony and Microsoft didn't allow transfers of their eshop games to their new consoles and there wasn't too much uproar. I'm sure it would be different in regards to Nintendo though.