Not with MW2, but with MAG.
At some point in the game, it freezes...Happened 3 times in a row(But I was able to play quite some time before it froze up I guess).
Man my warranty is over, if my ps3 brick'd on me I don't know what I would do! Especially since God of War 3, Heavy rain/WKC(have yet to choose which one) and GT5 coming in a couple of months!