As for the controller... yeah, its prepared for the next gen. Sony doesn't seem to change their controller much, and Microsoft isn't terribly ... creative. So the most they will do, is a touch screen. I'd say a level playing field is coming on this front.
And as for power... well because it's coming out first, and because Nintendo has spoken about their focus on game design, rather than powerful hardware.... well I expect it to be weaker than the competition. This means if (later in the generation) an Xbox or Playstation game comes out that is very complex, it will not be ported to WiiU. And this means ... bad. But I expect it to be to a much lesser degree than the Wiis late lifecycle issue.
But Nintendo knows they will need third party support. And Nintendo has acknowledged their poor 3rd-party support. They do seem to be working to fix company problems... one of which (used to be) difficult to work with.
- Stephen likes this