The US North East is up. Stopped just shy of me in Maryland. Sony is taking it state-by-state, country-by-country. They said the whole of PSN will be back up by May 31st.

Oh, California just came up.

You should check the Playstation blog for Japan.

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris