Selling more to developing countries is good only if you make a profit on each console sold. In Sony's case, more sales without increase in game sales is like flushing money down the toilet.
PSN ID: T_Gears
End of 2009 ltd sales:
Wii = 67-68m
X360 = 38-39m
PS3 = 34-35m
Prediction: The PS3 will surpass the 360 on weekly sales after it drops to $299 on all regular weeks (no big releases).