Sony Computer Entertainment confirms its PlayStation Network will be down for scheduled maitenance today from 8:00 am until 5:00 pm PST, so it should be back up for most people in a matter of hours at time of writing. Unfortunately, what isn't scheduled to go back online later today is the PlayStation Store, which remains offline since the whole security breach fiasco.
SCE's goal is to reopen the PlayStation Store for onilne business "by the end of this month"; we're just about to hit the final week of May, so it won't be long now assuming all goes well.
The PSN will slowly be restored to its former glory in phases since its big comeback over a week ago, though sadly the network service is still experienced notable hiccups involving some glaring security oversights despite SCE's promises of beefing up its measures.
Speaking of updates, the version 6.39 firmware update for the PSP was released yesterday. Just about the only thing it does is include a new walkthrough to help users change their PSN password in case they happen to be a little lost in how to go about doing it. It's certainly advisable to update your PSN password at this point anyways.