There have been many entrants to Darpa's Grand Challenge over the years, and that's unlikely to be the only development in the area: http://en.wikipedia.org/wik

There have been many entrants to Darpa's Grand Challenge over the years, and that's unlikely to be the only development in the area: http://en.wikipedia.org/wiki/DARPA_Grand_Challenge http://en.wikipedia.org/wiki/DARPA_Grand_Challenge