Why is their a news piece about NSMB being fastest game to 15 million?

[Seece]

twistedcellz said:

bcuz its an exclusive

Im sure if NSMBW would've been release on the DS too it would a sold about twice as much and theres already news on MW2 breakin records too.

So whats the deal

It's not the fastest game to hit 15 million like the title says. That's the problem.