In recent years, there have been some amazing demonstrations of successful learning robots, which master some difficult motor skills.
Here I have collected some of the most impressive ones, which I consider being major milestones at the time they were done:
This is work done by my former colleague Stephen Hart: Dexter robot learning to reach
Work by James Kuffner in CMU:
This is work done by my friend and colleague Sylvain Calinon:
Work by Pieter Abbeel: