An add-on with 3DS hardware built in that plugged into the Wii U and let you play 3DS and/or DS games on a TV and Wii U Gamepad. Like the old GBA Player for Gamecube or the Super Gameboy. The Wii U could support all the control schemes.
We got DS on the VC, but it feels like a missed opportunity on Nintendo's part to not get more 3DS connectivity on the Wii U. It looked like they were trying to unify the software of the two systems, but didn't go all the way. You could look up 3DS games on the Wii U eShop but you couldn't buy them. Your wallet carried over to both systems. And then... nothing.
I think a 3DS Player would have been a great value add-on to the Wii U. It may have given me an excuse to keep the console.
We got DS on the VC, but it feels like a missed opportunity on Nintendo's part to not get more 3DS connectivity on the Wii U. It looked like they were trying to unify the software of the two systems, but didn't go all the way. You could look up 3DS games on the Wii U eShop but you couldn't buy them. Your wallet carried over to both systems. And then... nothing.
I think a 3DS Player would have been a great value add-on to the Wii U. It may have given me an excuse to keep the console.