Currently the Northeastern United States seems to have gotten it back. It will be going by state and starting with the northeast. svcks for the southwest folk as they will probably get it last but at least it is now back. If it is back in time for Honest Hearts it will be a miracle. Playstation store is not however included with this yet. it should be back probably by may 31st if rumors circulating are correct. guess we won't get it in time for honest hearts.
http://blog.us.playstation.com/2011/05/14/play-on-%E2%80%93-psn-restoration-begins-now/
I also have to wonder whether the update for the network will interfere with any of the updates for fallout.
edit: looks like the network is not going by region but by state. northeast u.s. and california are now up...no playstation store though sadly.
edit 2: looked more into it. playstation store is to be back sometime this month. most likely not until the latter half. PS3 owners will have to make due with other games in the meantime.