The new US numbers are out now and they show the PS3 version of GTA 4 in the 8th slot -- just above Guitar Hero 3 (Wii version) and just below Super Smash Brothers: Brawl. It's also selling about half of what the 360 version is selling in the US.
How is this possible? The GTA franchise is Sony's home turf, their strongest franchise and biggest advantage from last generation. And in a few weeks Guitar Hero 3 for the Wii will probably be outselling it on a regular basis and the 360 looks like it may maintain a 2:1 sales lead, or nearly so, in North America.
Also, Mario Kart Wii and GTA 4 for the 360 are now neck-and-neck in sales, with Mario Kart Wii outselling GTA 4 for the 360 this week. Which game will end up on top at the end of the year?
