Currently the PSN is coming back online for players in the US. This is not all in one shot ether, service is coming back on state by state. As of this time parts of US eastern Seaboard is up for PSN, as in my case Maryland is up. You have to download an firmware update
and change your password.
Also the Trophy support is buggy and the PSN Store is not up yet.
And for Netflix customers, Netflix do work on PS3 again.