“And at the same time we were also trying out different experiments on the DS and the 3DS and the Wii to see which platform the game would work best on. We had decided on Wii when the possibility of putting it on the Wii U became available, as we began to see what that framework was going to look like. At that time we definitely decided, okay, this is going to be much better on Wii U.”
http://mynintendonew...nd-nintendo-ds/