Whichever the case, I would only like to see sony stick their noses in for one reason. CHEATERS. I hated it when I was playing Madden 05 and some guy who was loseing waited until the last few seconds to do this glitch where it drops both people and the game isnt recorded. It happend ALOT, this is why every time you turned around the TOP 100 list had all new people in it. And these werent cheats in the conventional manner, but wrather glitches either in the software or hardware provided by the third party deveolper. If Sony intervened then their would be a lot better chance of less glitches ever happening and the ones that did would be fixed.
No they dont have to start at square one, its as simple as adding a fan or two. Or perhaps adding a quality heatsink to the CPU.