I was going to argue then I release that with these percentage only u cannot say anything because u dont know the absolute gap between the PS3 and the xbox360.
... BS ...
By extrapolation, since by 2012 the sales numbers will continue to increase (because they sell console lol), this guy predict that the Xbox360 will averagly continue to outsold WW the PS3 significatively and continue to increase the WW gap
I guess his prediction are something like
Wii 100M
Xbox360 75M
PS3 50M
something like this with a gap between PS3/Xbox360 of 25M in 2012 (it is 8M right now)
Time to Work !