This article echos a few claims from Sony (apparently through Kotaku, but when following the source link I just get a "main page" on Kotaku, not the actual article) which suggests so:
though I don't care about PSN being down; nothing good is coming out of the Rock Band store these days and I've been too glued to Persona 4 to even play Portal 2 (which I don't use PSN for anyway, I'm just saiyan). So the fact that the PSN has been down for the past week or two hasn't actually affected me in any way yet.
Sony Online Entertainment says that it has a number of special events planned to thank players of the PS3 versions of DC Universe Online and Free Realms for their patience while work continues on getting PSN back up and running.
These events will commence on Saturday 30th April, although that is presumably reliant on PSN being back in action by then
though I don't care about PSN being down; nothing good is coming out of the Rock Band store these days and I've been too glued to Persona 4 to even play Portal 2 (which I don't use PSN for anyway, I'm just saiyan). So the fact that the PSN has been down for the past week or two hasn't actually affected me in any way yet.