The official PlayStation app for iPhone, iPod touch and iPad, is a gateway to the PSN, allows you to "take the PlayStation everywhere you go." It allows you to do is check your trophies and the current online status of your friends -- there's no PSN chat for instance, and certainly no games to play. The Official PlayStation app is by no means the first iOS app to enable you to do this either, but it is free and could mark an expansion of the PSN out from consoles.
The app also syndicates news, and content from Playstation.com and the PlayStation.Blog, so you can keep abreast of all the latest official developments. A catalog of PlayStation games is accessible, complete with trailers and write ups if you're looking for information on a particular game.
It's simple to use just sign in with your PlayStation Network Sign in ID. If you don't have a PSN account, you can create one at eu.playstation.com/registration.
Currently it's only available in Europe.
Download From: iTunes App Store