Good stuff: Eldercare Robotics: A Personal Mobility Aid, a project that attempts to strike a dynamic balance between assisting the user and letting them be in control. Which, when you think about it, is what all technologies should be trying to do… Anyway, this one adds a robotic element to a ‘walker’ with an agent-based control architecture to allow the user and the robot to complement one another.
A conference paper is available at the site or in the ACM archives.