The Playstation network is in the final stages of restoration.
I turned on my PS3 to play some Fifa, and it says i have to install a new update, so i just burst into a happy mode and then go on youtube to see if anyone else is back online as well. But NO, Sony have made us install this update to help increase the security for when the PSN does come back up.
So with this news of an update i can imagine that the PS3 will be back online soon for all us gamers to download and play games soon, i do hope so anyway.
here is the article for the PS blog http://blog.eu.playstation.com/
Article from Gamersyndrome.com