Finally. According to the official PlayStation Blog, Sony spokesperson Patrick Seybold posted that Sony has begun restoring PSN access regionally and areas are being updated every few hours or so on the Playstation Blog.
Going on what has seem to be one of the longest service outages due to a security threat that led to millions of PSN and Qriocity users having their private information compromised, Sony is finally restoring service. So, those who purchased Brink this week, and have been waiting to play Co-Op Portal 2, can finally rejoice and go on with their online gaming ways. And yes, Black-Ops fanatics will get their hourly fix once again.
Sony's Kazuo Hirai suggested that users update to Firmware 3.61, in addition to changing their passwords. Hopefully Sony has put in the proper methods to prevent an attack like this from happening again and that their "welcome back" program is enough to woo individuals back on to the PSN while they've been seeking alternatives in the interim. PlayStation Store and Qriocity will be restored in the future. It will be several hours until the PSN is restored in the United States and Europe completely, but you can continue to follow updates on this post for US updates or this one for Europe.
UPDATED: Here's a video detailing this annoucement from Sony Computer Entertainment CEO Kazuo Hirai: