PSN Back Up Online In Some Regions, More To Follow
PSN is currently being brought online for gaming in multiple regions around the world – US gamers can check the Amercian PS blog to check which states have been rolled out,
European regions are being restored bit by bit. There's still no exact confirmation of the return of online multiplayer functionality, but anytime in the next 24 hours would seem a fair bet.
Update 3.61 is available right now, so get your PS3 ready to go back online and download the 177MB update immediately. The update is mandatory and will get you to change your PSN account password.
See what Kaz Hirai has to say about the rollout here. As yet there's been no updated timeframe for the return of other services such as the PlayStation store, but expect them all back by 31 May.