The nintendo DS does this on a much smaller scale, so it isn't as challenging as using the WiiU- plus the controller is way better than Wiimotes, omg, but I digress.
If I was Nintendo, I would have released Splatoon a LONG time ago, because that game is selling like hotcakes. Everyone is playing this thing. I would have released it alongside Mario Kart 8 and Wind Waker as a launch title. Clearly the content hole was not really a problem with Splatoon, so Nintendo should not have been worried about it. At any rate, try to bring Pokemon to consoles again now that Game Freak can do 3D. It needed to be sheltered from Xbox One and PS4, and Nintendo decided that meant to rush WiiU. Bad idea. Whatever, the wiiu is too old for these ideas and what ifs- the point is that if released correctly, the WiiU could have wrecked face.
They have no competition in the handheld market and it is so obvious that Nintendo banks on that. Too bad it can't be that way forever thanks to smartphones.