The PS3 currently has 10 million sellers and looks like 11 and 12 will be within a few weeks.
Ratchet and Clank: Tools of Destruction is sitting on 0.94 million
Heavenly Sword was updated and now says 0.92 Million
GT5:P apparently had 1 million pre-orders.
So there you have it. PS3 should have 13 million sellers within maybe 4 Weeks.
Edit: Thanks PooperScooper for mentioning it, #14 will be GTA4!!