On PC i've experienced one crash, and immediately after Fallout crashed...steam got me to install an update (I run F3 through steam obviously), so i'm curious if the update screwed the game up.
But otherwise i've done boatloads of sidequests, most of the main quest, gotten all, or nearly all, companions, and explored for hours.
All I have to report is that one suspicious crash, and a lot of people i've talked to (PC users) haven't reported problems either.
It sucks the poor little consoles can't handle the game, but really if you're just going to whine and bitch about 'bugs', get out. Let the people actually playing the game actually talk about the ****ing game. Tired of scrubs and noobs in this thread just whining like little morons replying the same way over and over.
Drop it, or get a PC that can handle games running on a somewhat old game engine.