I think it's funny that R* (well, more the poeple here) blame the PS3. Nothing says they have to make it for the PS3.
It took longer, ok, but it was R*'s choice. If they didn't think it was worth it, then they would have just made a 360 version and released it when it was done.
How do you blame Sony becuse R* wants 9 million more systems it runs on?