I know they got hacked, its worse then they expected, the hackers got access to dev accounts and such. But first they said 2 days, but it turned out its like 5 times worse then they expected, and their maintenance efforts were fruitless, so they are redoing their whole server infrastructure, it will take a while. And despite that, they arent really sure how deep the hackers inflitrated the PSN network, as in still being exposed even if they re-do the network.