Look at it this way. Last Christmas, the ps3 was the same price it is now. However, they were selling a LOT more of them, and they were losing a LOT more on each sold than they are now. Yet SCE still managed to turn a profit for the quarter.
This year, software sales are higher than they were last year, they're losing less on ps3 hardware overall (due to lower costs and lower sales), and the PSP is booming in Japan (though the ps2 is slowly dying off around the world). I have a feeling SCE will pull a profit for this past quarter (though it still won't be very high, given the floundering of the Yen), and next year they should be doing alright, assuming they don't cut the price of the ps3.







