An anonymous reader writes: Kawada Industries and the National Institute of Advanced Industrial Science and Technology (AIST) 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 towards creating useful mechanical workers to deal with a forthcoming shortage in the labor force and care for a fast 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. Follow the link for a video of HRP-4 in action.