How gyro support was added to the new Steam Controller is a 'typical Valve story' involving a passionate employee moving desks

The gyro controls also offer a grip sensing feature, which turns on the gyro when you're holding the controller, and disables ...

Steam Controller Preview – Hands-On With Valve's Reinvented PC Gaming Controller

The new Steam Controller combines the full gamepad experience with premium features like TMR sticks, motion controls, ...