VR Foottreoller for natural movement control in VR by the user's feet.
The foottroller connects to devices as a generic joystick. User foot actions are used to control the joystick.
3 operation modes: 
Mode 1: basic four-way movement control with user
Mode 2: four-way movement control + Walk/Run in place
Mode 3: developer mode with the foot operated joystick function as in mode 1 or mode 2 and raw data from the foottroller.  (Touch states + foot tilt angles + foot poiting directions.)
Steam VR support with the Foottroller PC application, and steamVR driver (avaliable from the website)