I do not think it was anonymous who attacked the PSN and they are doing everything they can to make it more secure from attacks. see related question
Yes it is. The PlayStation Network does not charge to play games or use the network
PlayStation Network is the main service that PlayStation uses for all of its online services, such as online multiplayer. You are connected to PlayStation Network whenever you sign-in, or play a game online. You can also access the PlayStation Store on PlayStation Network, as well.
Not on the PlayStation Network
Playstation Home and Playstation Store Online Gaming System help and information
PSN is an abbreviation for PlayStation Network, an online network for PlayStation consoles.it is free and you can compete for trophies
You need an online connection and a PS3 for the Playstation Network
Yes on the Playstation Network
It means you can play against other individuals online over the Playstation Network if you both have PSPs with Playstation accounts, internet connections, and the game
Yes you can play PSN (playstation network) for free.
In the USA there is the SONYSTYLE.com online store and the Sony Retail Stores On the Playstation Network there is the Playstation Store
Yes on the Playstation Network
The PlayStation network refers to the online features of the PS3. Every time you do anything online on your PS3 you are using the PSN. You can download content, play games online, and watch movies on the PSN.