Valve recently announced their impressive Steam Controller, a gaming controller that forgoes the traditional joystick setup in favour of a more intuitive and immediate interface.
The high resolution, circular trackpads allow for greater precision and also provide haptic feedback via weighted electro-magnets that offer unprecedented response time. The trackpads are also clickable, offering a similiar function as the PS3 and XBOX joysticks.
The Steam Controller is designed to work Steam Machines, the recently announced Linux-based operating system, SteamOS.