Could the Wii end up outselling the PS2? Satoru Iwata seems to think so -- at least, that's what he told Reuters in a recent interview. He even waved away the impending PS3 price drop and redesigned PSP as likely having little-to-no effect on sales of the Wii and DS.
The PS2, however, is a legendary juggernaut in the world of consoles, with more than 120 million units shipped to date. The Wii is estimated to hit around 20 million by next March, and if Nintendo wants to catch the PS2, they better fix that whole shortage problem. But it's still early in the cycle of the system, and at the current rate, anything is possible.