I think Kaz and the PS3 is going to surpirse alot of people by getting close to lasting for 10 years.
Remember that while SONY doesn't have the advantage of being number 1 this gen it does have the advantage of Wii being different -- and more casual focused... therefore PS3 and 360 are likely to last 7 - 8 years before being replaced then 12 - 24 months after that until they are discontinued.
Ohh and M$ want 360 to last 7 or more years on the market -- which would give SONY 6 years on the market before they have to worry about a next-box... and i must say if PS3 is supported for 7 or 8 years ill be content with its life-cycle ...







