Let's be realistic and say what could Nintendo do to improve Wii U's controller:
Me first:
- Clickable thumbsticks: we've had them since more than ten years, there's no excuse not to have them.
- Multitouch screen: I don't know why the screen is not multitouch, but it's obvious it would improve Wii U's gaming by a lot!
- 3D screen: just like 3DS, the technology is already there, but since the controller has a touchscreen, the player's hand would get in the way wich brings us to...
- Touchpad on the back: just like the PSVita, this would be parfect for 3D games and would open a lot more gaming possibilities.
- Camera on the back: I have a few ideas on how or why it would be great, also it doesn't cost too much to implement.
Any other ideas?