SAN FRANCISCO -- Tucked into the cluster of business parks surrounding Stanford University, a team of young engineers is assembling a fleet of robots that can fold laundry, bake cookies, flip pancakes and deliver cold beer.
For that matter, the PR2s, as they're known, can do just about any task you'd expect of the average butler, so long as somebody cares to write up the software. And that willingness to share in development is part of the mission of Willow Garage, a 5-year-old Menlo Park research lab.