Bard, it's far surpassed PS2 at this point LTD in America (and the other two territories for that matter).
America -
http://vgchartz.com/hwlaunch.php?cons1=Wii®1=America&cons2=PS3®2=America&cons3=PS2®3=America&weeks=100
Also, check out the edit to my previous post.
The rEVOLution is not being televised