IBM has posted a detailed article on installing Linux on the Sony PlayStation 3 gaming console.

The PLAYSTATION 3 is unusual for a gaming console for two reasons. First, it is incredibly more open than any previous console. While most consoles do everything possible to prevent unauthorized games from being playable on their system, the PS3 goes in the other direction, even providing direct support for installing and booting foreign operating systems. Of course, many of the game-related features such as video acceleration are locked out for the third-party operating systems, but this series focuses on more general-purpose and scientific applications anyway.