Despite hundreds of researchers working worldwide in the area of robotics, their development efforts tend to be proprietary. Researchers may be working on similar problems but they rarely share code or hardware. Willow Garage was founded in 2006 with the idea of creating an open-source hardware and software platform. In addition to its hardware prototype, Willow Garage has also developed the Robot Operating System (ROS), which originated at Stanford’s Artificial Intelligence Laboratory. ROS is based on Linux and can work with both Windows and Mac PCs.
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Looks like the robot is giving me the finger
Apparently you have your answer. The wired article was (quietly) updated:
Willow Garage was founded in 2006 with the idea of creating an open-source robotics software platform. Willow’s hardware has “open interfaces” but the company does not publish schematics and other details of it. Instead it is focusing on open source progamming to drive the device.