well i read another articla and i'm trying ot find it at the moment, although the huge losses, sony made up alot of their loss on ps3 release since they own the rights to the spider man films which have profited sony big time! as well as that they are also one of the largest cinema, dvd and blue ray film distributors in the world.
The development cost of a ps3 has also been halved since its release and they reported earlier in the year that they have started to break even since then with every ps3 sold. they are no longer losing out with every unit sold. They also sold the cell chip rights to ibm which they got quiet a bit of money back from to recover some of their losses.
So although the ps3 aint doing as great as it should be, their future is far more secure then made out by many in this thread.