Regarding Wii U, i think Nintendo will do awesomely. Tablets are on the rise which is really good for them, but since they are adding buttons and joysticks, those who like to play with their controllers will be pleased as well. All in all, there`s pretty much something for evertone and this is something that only Nintendo is doing.
In a certain way, that`s why the Wii remote was so accessible: it offered motion controls and regular controls at the same time.
About 3DS' 3D being a gimmick, personally i don`t think it is. I really like to play Zelda with it turned on, it`s just that it`s not easy to move around the console with it turned on.
I just think the technology behind it isn`t the best for a handheld. You move around a lot and easily you see double images.
3DS uses Parallax Barrier Technology which may be replaced by Lenticular Lens Technology, which gices a wider range of viewing angles. This new technology could be used in a 3DS Lite for example.
