Valve Shows off Steam Controller
According to the video, the controller will "virtualize familiar controls, like a trackball, a mouse, or a scroll wheel," providing a degree of precision that controllers generally aren't capable of. The triggers are dual-stage, with a digital switch at the end of an analog pull, and there are also grip buttons on the back of the controller. Typing with the controller in Steam Big Picture has been made less strenuous, says Valve. You're also able to customize your button lay-out per game, with the Steam Community able to create mappings for others to download.
The controllers are available for pre-order now for $50. Those that are pre-ordered will be shipped on October 16th. Pre-orders are currently unavailable for Steam in Canada and Australia
"A limited quantity of orders will be shipped October 16th, weeks in advance of our official launch," Valve said, "Pre-order now and be among Steam Hardware’s first wave of users."