PR2 Function defines Form

PR2 combines the mobility to navigate human environments and the dexterity to grasp and manipulate objects in those environments.
[source: http://www.willowgarage.com/pages/pr2/overview]

Willow Garage's first projects were an SUV entrant into the DARPA Grand Challenge and an autonomous solar powered boat for deploying scientific payloads in open oceans.[7] In the Fall of 2006, Eric Berger and Keenan Wyrobek were recruited from Stanford to start the Willow Garage Personal Robotics Program.[8] They founded the Stanford Personal Robotics Program[9] to build prototypes for the platform technologies that would enable the personal robotics industry. At Willow Garage they continued to execute on that mission with ROS,[10] an open source robot operating system, and the PR2[11] robotics development platform.
[source:https://en.wikipedia.org/wiki/Willow_Garage]