An anonymous reader writes "Kawada Industries and the National Institute of Advanced Industrial Science and Technology have unveiled their new humanoid robot, HRP-4. The new humanoid stands 151cm tall and is much thinner than its predecessors. For Japan, HRP-4 is another step forward in creating useful mechanical workers to deal with a forthcoming shortage in the labor force and care for an aging population. HRP-4's creators expect to start selling the robot to universities and other research institutions as early as January 2011 for a price tag of $300,000, which is not that bad for a humanoid." The HRP-4s are a whole $100,000 cheaper than Willow Garage's PR2 (non-humanoid) robots, which became available earlier this month. The difference really adds up when building your robot army. Ron Moore could not be reached for comment.