After the most recent sales update, the Wii is almost at 18M unts in the Americas and Sony's black box is at about 17.9M units worldwide. The Wii now has more in one major sales region than the PS3 has worldwide.
Absolutely mind-boggling.
(The 360 was in this position about a year ago because of its head start, but it's unlikely to ever hold that advantage again. The Wii came in and did it with a virtually simultaneous launch.)
Sony had this kind of advantage for the majority of the PS2 generation, if not all of it. It is, in my opinion, one metric of hardware sales domination.











