"Wii software flew off the shelves, proving that Wii games sell ... as long as they're published by Nintendo."
It's the word "sell". As in simply selling the games. As in they're drawing the conclusion of selling games at all just from that list.
It's not pointing out the flying off the shelves part, because the final part of the sentence would come after that, not the other part.
See what is setting some of us off, stof?
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs