While this particular machine's march to the world market is still years away, the report in the journal Science said the latest advances open the way to a new frontier in personalized robotics.Not only is the material cheap -- it cost just $100 -- it could be easily reprogrammed from one task to another, said Sam Felton, a researcher at Harvard University's Wyss Institute for Biologically Inspired Engineering and School of Engineering and Applied Sciences."In the same way that if you have a Word document and you want to change few words, you just reprint it at your home computer, you could take a robot's digital plan, change a few things and reprint it," Felton told reporters.