@shams - Nice to see some sense in the thread.
@alpha_dk - My problem with your numbers is you're taking something thats happened in the past and just applying that theory to something that has never happened before.
3 years from now I see the Wii at around 85 million and the PS2 at around 125 million.
5 years from now is when things will get interesting and the Wii may pass the PS2 at the 130 million mark.