The PlayStation Network is going down briefly this morning for routine scheduled maintenance in North America, Sony has announced. It'll begin at 9am Pacific and is expected to end around 11am.
During the maintenance, PSN users won't be able to access the PlayStation Store, or account registration and management. Sony says that while "the majority" of PlayStationeers will be able to log in and play online just fine, "some users may experience difficulty signing in to PSN." Fingers crossed that you're not one of them.
That's it. What more do you want? Go home.