Apparently the damage done was worse than we thought...
http://arstechnica.com/gaming/news/2011/04/sony-admits-utter-psn-failure-your-personal-data-has-been-stolen.ars
You're only in trouble if someone else gets a hold of the information.
The hackers have access to more information than anyone thinks.
But hacking peoples accounts for CC information was not an objective of said hacking. We should all know this by now.
Edit: It says "your information has been stolen" but they can't even tell if any of the data was actually copied...