All I know is that the GFX cards of the 360 and PS3 at the time were highly argued and it was generally recognised they preformed similarly. They weren't vastly superior to PC cards, the hardware just had to do less. And that is where the largest flaw in games consoles come from, while being it's biggest strength. They play
games above what a similar spec PC could do at a
cheaper price. It's what they are designed to do! The console itself is subsidised to the point where they don't make a profit selling it, or even make a loss, but they make it up on games sales.
Who the hell would actually buy a ps3 as a home computer? They'd be completely stupid! The ps3 is good at playing games, that's what it does, not doing the multitude of other things PCs perform. It would be like taking a server PC, saying it's epic because it has 16 processors, and expecting it to play crysis on top graphics. Home computers are designed around being a jack of all trades. Take the case of TCP, it queues acknowledges which for a networking PoV makes perfect sense. For gaming, it doubles latency... Can be
fixed, but it just shows how systems are designed around one thing which doesn't work for everything else.
Basically what I'm saying is by putting an OS on the ps3 you would slow it down. You would be removing it's single targeted aim of playing games. If you tried playing a game while running the OS, it would be much worse than without, and I wouldn't be surprised if it was worse than a PC would have been at the time of it's release. It just isn't designed to do it, and I doubt that is why this hack was done. Free games ftw?