According to Patrick Seybold, the Director of Corporate Communications & Social Media at PS Blog today:
As some of you may have noticed, we've temporarily taken down some functions of PlayStation Network - specifically access to the PlayStation Store, account management and registration.
Online gameplay will remain uninterrupted.
We thank you for your patience and will report back here as soon as the Store and registration functions are back online.
So at least it's confirmed, eh? Still meh though!
Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!