You can add 1 account per memory card
You need to make a sub account (child) and a master account (parent or guardian )
Yes. PlayStation Network allows you to save your billing info (ie. a credit card) to your account, allowing you to buy games on the PlayStation Store on the PlayStation 3 and PlayStation Vita without the need for a prepaid card.
It stands for PlayStation Vita and 'vita' is Latin for 'life'.
The PlayStation Vita is a standalone system. You do not require a PlayStation 3 to use it.
You only need a PSN account not a new one
PlayStation Vita was created on 2011-12-17.
LittleBigPlanet - PlayStation Vita - was created in 2012-06.
Playstation vita
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.
The Playstation Vita
No it does not. Software for the PlayStation Vita is sold on a proprietary PlayStation Vita memory card rather than on Universal Media Discs (UMDs) used by the original PSPs.
You need a PlayStation Network account and a way to add funds to your online wallet. The easiest way is to go to a game store, they sell PSN credit there, you will be given a redeemable code.