My Dear friend, I dont believe this is the reason for Sony Attack. This is a retaliation about Sony Intransigence to keep firmware's locked down. Playstation 3 is like a PC. It can be used as a real PC. I believe this is an inside attack, maybe former employes or better OpenSource Believers.
There is absolute no need to attack to another gaming community because you are vulnerable too. Don't you think sony has the resources needed to do exactly the same ?
This is a showoff for sure. But who ?? We will never know. The point is our accounts are Compromised !!!