I just looked at the 360's first full year; it sold roughly 6 million (it was a real quick look, so I might be wrong), so I think it's quite safe to say the Wii U will sell more than 7m based it's initial sales relative to 360's. I say it'll sell closer to 10m copies in 2013 - but this is of course without knowing what MS and Sony will bring to the party...
EDIR: And oh - you're crazy!!
I'm on Twitter @DanneSandin!
Furthermore, I think VGChartz should add a "Like"-button.