Not a PS3 user, but thought the CP Community would like to be aware:
http://us.playstation.com/support/an....htm?a_id=2185
The PlayStation Network will be taken offline for maintenance on Thursday, February 2, 2012, for approximately 17 hours during the following maintenance window:
Down Time (Start): Thursday, February 2, 6:00 AM, Pacific Time
Down Time (End): Thursday, February 2, 11:00 PM, Pacific Time
During this time you may:
* Not be able to access the PlayStationŽStore
* Have difficulty signing in to the PlayStationŽNetwork
* Not be able to play online games
* See a maintenance page when attempting to access the PlayStationŽNetwork