The OpenPuck project allows the Steam Controller to emulate console controls, among other uses

A work in progress, but a very intriguing one.
Tech Xplore

Researchers achieve remote, autonomous power control of a research reactor in real time

For the first time, researchers from Idaho National Laboratory, the Grainger College of Engineering at the University of ...
Tom's Hardware on MSN

Enthusiast reverse-engineers Steam Controller, creates DIY OpenPuck that works without Steam Input

OpenPuck is custom, open-source firmware that can turn a microcontroller into a DIY Steam Controller puck in minutes. You can ...