Behold, The Valve Steam Controller
As part of Valve’s major play for the living room, the company wanted to seriously revisit the concept of input. Mouse-and-keyboard is simply too cumbersome for the living room, and Valve felt that current game controllers left too much to be desired, as well.
The wireless Steam Controller is designed to offer a “vastly superior control scheme” compared to other offerings, and Valve has endeavored to deliver better resolution, fidelity, and precision with low latency.
The device will play all Steam games--even older titles that weren’t built for anything but mouse and keyboard input--and it features dual circular trackpads that are clickable; a touchscreen in the middle of the device (that is also clickable) that overlays your input on the big screen; and sixteen total buttons, including left and right shoulder buttons, A/B/X/Y buttons, and more.

Example of Valve Steam Controller bindings
It should come as no surprise that the Steam Controller is fully hackable, and it’s part of the Steam Machine beta, so if you get in, you get a controller, too. However, the beta version won’t have the touch screen, and it won’t be wireless. However, you will be able to use the Steam Controller on non-Steam Machines, which is a smart feature by Valve.

You’ll be able to get your hands on the Steam Controller next year when the Steam Machines start marching off the assembly lines.