This is handicapped, so a bunch of angry nerds managed to take down a network run by a multi-billion dollar Japanese company, and they managed to keep it down for almost two weeks. Sony isn't even trying.
Actually they didn't crash the servers. Sony shut the servers down by themselves in order to rewrite their entire security system.
I'm still pretty sure anonymous did it. You shouldn't believe any immature hacker when they say they didn't hack something, especially when they were doing DDoS attacks during the same month, along with calling Sony incompetent.
I know this is unrelated, but what exactly is going on in your avatar.
SEND STOCKING A PM, DAMN IT! Personal/unrelated/dumb questions de-rail topics.