Sony have confirmed that the playstation Network will be down for scheduled maintenance tomorrow, September 21st. PSN blog states: “Maintenance is expected to start at just after 8 am Pacific and will last for several hours, until approximately 5 pm Pacific. During this time, users won’t be able to access the PlayStation Store, PlayStation Home or Account Management, and may encounter difficulty while signing in to PSN."
On the plus side, because this maintenance overlaps with the normal PlayStation Store content update, they will be making new content available tonight.
To keep a track of any updates you can follow the Playstation Twitter feed here.
