Reality-"While there is no evidence at this time that credit card data was taken, we cannot rule out the possibility."
Delusion-"Holy Jesus everyone in the universe needs to run out and chop up their credit cards right now."
Chill out, world. Yes your name and address possibly being stolen is bad, and you should change your passwords if you haven't already. Yes this is a big deal, but it's not the end of the world. Sony took the necessary business precaution by telling everyone to keep in contact with their creditors incase something went wrong but by doing so just gave every Xbox fanboy on the face of the earth a victory flag when Sony's specifically stated there is no evidence. Relax, make a phone call if you're worried, and wait for the network to come back on.
Or, we could do what (the original poster) suggested and all flock over to Xbox Live so the hackers will have a new target to do the exact same thing.