Final Prediction for PS3 and Xbox 360 Total Lifetime Sales.

[Augen]

Dark_Lord_2008 said:
90 million for XBox 360.
100 million for PS3.
PS3 can sell 18 million over the next 4 years.
XBox 360 can sell 9 million over the next 2 years.

This seems reasonable to me, give or take a million.