Uncharted 3 only on PS3,why?

Uncharted 3

Uncharted 3: Drake's Deception is one of the PlayStation 3 (PS3) is quite horrendous in 2011. For PS3 owners should be proud of, but for other players it certainly raises some questions. One of them why not released for multiple platforms?

 "It's just the PS3 processors are capable of handling the game. PS3 is already old, but Naughty Dog know how to make this," said Nolan North, the voice of Nathan Drake.

Indeed, since the beginning of the series Uncharted just released for the PS3. And though always released to the same platform, each series of the game is able to bring amazing changes, even more so in Uncharted 3. This game was expected to also be made ​​for 'PlayStation 4'.
  
Uncharted 3 is one very interesting game. Although released for consoles that are older than 5 years, but this game has quality graphics and amazing game system