Well, this started with Eurogamer but if i'm not mistaken, this leak was corroborated by other people.
Also, nothing shown stops Nintendo from doing this too... although it's not really encouraging knowing no one wanted this.
The idea of this leak - again, confirmed by other sources - being a decoy seems really farfetch.
I'm not a fan of this concept but i can't see it not being true. And with that in mind, i really, really, hope Nintendo was smarter than this: wii remotes for the home console is not something gamers want... again.