The PS3 has had a lot of problems that seem to date back to the start of development of the CELL in 2000, SONY wonted to create a CPU that could tack on WinTell in the server market, but they have not been able to do that and IBM have ceased production of a replacement to the CELL.

http://en.wikipedia.org/wiki/PSX_(DVR)
Then 2003 SONY released the "PSX" a DVD Recorder based off the PS2 as an experiment to test how easy it was to make a consumer electronic device out of a games machine and t test market reaction. it was only released in Japan because it failed because it was very expensive about 60-80000YEN or about US$925 for the top model.
Then SONY played Russian Roulette with the PlayStation Brand by PS3 became a vehicle for winning the format war with there Blu-Ray against TOSHIBAs HD-DVD despite the fact that it was a huge gamble in light of there failer in the BETAMAX vs VHS VCR war of the late 1980s and the failer of there VCD against TOSHIBAs DVD in the mid 1990s the gamble of cores work this time but only because the PS3 was the chepest Blu-Ray play on the market in 2006 being $600 half the price of stand alone Blu-Ray Players at the time.
but many Developers/Publishes started to more and more go multiplatform because of uncertainty with the PS3 and the marketing of SONY, PS3 did not moving software like it should costing them a lot of big exclusives that they were almost guaranteed before lunch in 2005-2006.
I love the games from the PS and PS2 era but SONY better get there act together for next Gen with a easer to program for system and a more comdative price or it is all over.