Since the topic was brought up I will point out that the PS2 will gain ~10M units in the next 16 weeks on the aligned launch chart. In short, the PS3 won't be able to keep up and the Wii won't be able to maintain the ridiculous margin of its lead even in this flawed comparison.
@KN,
You are right though, the Wii is doing pretty fantastic and while its not appropriate to look at this graph and say the Wii will continue at this rate relative to the PS2 its certainly fair to say that it could break some records. Both the PS2 and Wii had/have supply issues so staggered launches are part of the business, the easiest way to say this is that you can use aligned launches to compare the past but not to predict the future.









