http://uctv.ucsd.edu/search-details.aspx?showID=12295

Direct audio link:

http://podcast.uctv.tv/mp3/12295.mp3

One thing that I found fascinating is the way he describes his collaboration with Tversky; he basically said that he had a "common mind" with his collaborator that was significantly better than their separate minds. This seems interesting and under explored/utilized area of Intelligence Augmentation (with some credit due to Vinge for his exploration of mind combinations in Tines world). 

Possibly relevant:

http://lesswrong.com/lw/6j1/find_yourself_a_worthy_opponent_a_chavruta/