Sony will soon release a free application called App PlayStation , to be updated in any situation.
PlayStation App is an application of Sony for mobile phones based on Android (Android 1.6, or Donut for friends, or more is required) and IOS (IOS 4.0 or higher is required).
It provides access to the latest news from the blog, and all the official news about games, hardwares of consoles Sony (PS2, PS3 and PSP). In addition to news, Sony offers the ability to view his friends list of PSN trophies the players, and those of his friends, and many forms of games.
Each platform has a right to his image:
Source: PlayStation Blog