A little bit off topic, but I think that it fits in, even if not directly covered in the article.
Gimmicks.
I think that the Wii remote is going to be more devasting that MS and Sony realize, not just for this generation of consoles, but the next even more so.
Think about it. The Wii remote isn't always the main controller for all Wii games, but the Wii system has been set up to use it as such. Why not for all games? Because the hardcore gamers can't / won't use it for some games, and even Nintendo knows that.
But, the new gamers, either young (say 5-9), female, older adults are playing the games with the Wii remote. And probably ONLY with the Wii Remote.
What does that imply? For the next Nintendo generation console, those gamers will migrate on using a similar input. But not the more standard controllers that MS or Sony will provide. Of course, MS and Sony will come out with their own motion controller. But what will be their mindset towards that? It will be the 'gimmick' controller, the 'baby one' (as in new gamers) that the 'real gamers' (as in the current hardcore) won't want to use. And I think MS and Sony will treat their motion controller as a gimmick. So, if you want to use decent motion controller, you'll have to go with Nintendo again.
And the old standard that as a novice/young gamer, you start out on a Nintendo then 'graduate' to a hardcore machine, the PS4 or X720, might not work as well as it did in the past. Because just like the hardcore ones prefer the controller style that they grew up with, as it became more and more complicated with buttons, the next generation gamer won't like that style, and never will.