No.
You can sign up to the PlayStation Network by going into "PlayStation Network" on the XMB, then click 'Sign Up to PlayStation Network'. Or you can follow this link to sign up on your computer, then transferring your account to your PlayStation 3 console. http://www.us.playstation.com/PSN/SignUp
No because you need a router to connect to the playstation network
PlayStation should be back up in a few weeks
PlayStation has announed that they will have it up before may/31/11
Get an Xbox.
It is the Playstation store and you have to have money in your Playstation Wallet from either a credit card or a Playstation Network card you buy where most video games are sold and then charge up your wallet
Apparentally Yes! PlayStation Network said they launched May 15th....So if its not up now,maybe in the next few days,OH AND....update ps3 to version 3.61
Yes it is
Most of it is up but the PlayStation store was still down on May 30 2011
There is an option on the xmb menu, under the playstation network section, that says sign up :)
If you have a playstation network card, you can download anything from the playstation store, as long as you don't exceed the money limit on the card.
you sign up and it's free on a psp