The launch date was November 11 2006 see related link
No, PSN content is restricted by the region the PSN account was created for. If you are logged into an EU account, you can only access the EU content on the PSN. If any titles are exclusive to the US version, you're unable to purchase them from there.
PSN only accept Credit Card or Debit Card that belongs to the region in which the PSN account was created. If you have a US PSN account then you can use only US credit or debit card.This is because PSN does some background check called Address verification Check which is basically Sony checking with your card issuing bank about the address, if the address is from a different region then you will not be able to use that card for that account.Other alternative is to use PSN cards. If you are from a different region and you use a different region PSN account then the best option is to buy a PSN card online.More detail on this can be found at : http://invisibleknight.blogspot.com/2013/04/psn-cards-playstation-network-cards-how.html
The PlayStation Network, also known as the PSN, is a gaming and shopping service created by Sony Computer Entertainment and is used for PlayStation 3, PlayStation Portable, and PlayStation Vita. One cannot add funds to PSN over the phone.
No, a Japanese PSN account can only be funded with a Japanese PSN card, one with a yen amount on it.
Just make your own user account on your brother's PS3 and then make your own PSN ID name and whenever you log into YOUR user account, your PSN name/ID will be logged in also. This way you can have your own password, data, etc. without having to use your brother's PSN account.
It's actually known as a PSN ID. http://www.us.playstation.com/PSN/mediago
The PSP-3000 can access the PSN, yes.
by PSN you need a account to PSN
WHAT DOES PSN STAND FOR OR MEAN
You can't. PSN stands for PlayStation Network. You can't connect a DS to PSN.
No you can't, PSN cards are country and currency locked. You cannot redeem German PSN topup cards on a UK PSN account.
Yes, there is a PSN link on the Vita's LiveArea.