Hmmm... I don't think Wii will last 2 generations (or 10 years)!
And that's because there'll be a X720 PS4 around 2012 I think, so Wii will be lackin in terms of not only graphics. But potentially also motion-sensing technology and the pushing of user-friendly software like the Wii-series.
That's why I don't think it'll be able to do what the PS2 is doing, has done!

THE NETHERLANDS









