Yes
No the PSN is down world wide
The site is down worldwide see related question
Yes, but we don't know when it would come out.It came has come out in Japan and in PSN sadly since its in Japanese you can't get it in the English PSN.
No it is down worldwide since April 20 2010 and up to today May 14 2010 11PM EST
No, a Japanese PSN account can only be funded with a Japanese PSN card, one with a yen amount on it.
It's actually known as a PSN ID. http://www.us.playstation.com/PSN/mediago
WHAT DOES PSN STAND FOR OR MEAN
by PSN you need a account to PSN
The PSP-3000 can access the PSN, yes.
You can't. PSN stands for PlayStation Network. You can't connect a DS to PSN.
Yes, you can only buy it on the PSN (Playstation Network) online, unless you're in Japan, they have a disc copy of the game.
No, PSN is free and there is no indication that is going to change.