PS2 life sales

[theRepublic]

All:

http://vgchartz.com/hwlaunch.php?cons1=Wii&reg1=All&cons2=PS2&reg2=All&cons3=X360&reg3=------&weeks=156

Japan:

http://vgchartz.com/hwlaunch.php?cons1=Wii®1=Japan&cons2=PS2®2=Japan&cons3=®3=------&weeks=156

America

http://vgchartz.com/hwlaunch.php?cons1=Wii®1=America&cons2=PS2®2=America&cons3=X360®3=------&weeks=156

Others

http://vgchartz.com/hwlaunch.php?cons1=Wii®1=Total+Other&cons2=PS2®2=Total+Other&cons3=X360®3=------&weeks=156

That should give you a pretty good picture of what is going on. It should be noted that the PS2 had a staggered launch, and that the Wii had a near simultaneous launch in those regions. That's why when you look at All regions, Wii looks way ahead of PS2.