We ran into Natalie Jeremijenko today at the ZeroOne San Jose exhibition hall. She's the UCSD professor and brilliant force behind the open source Feral Robitic Dogs Project. I first read about her work in an article named Ooz and Oz from the second issue of O'Reilly's Make magazine (if you're not reading Make yet, I highly recommend it).
Natalie Jeremijenko speaks about two robotic projects that experiment with the redesign of structures of participation by altering machine-human interaction. Listen to her on IT Conversations for a better understanding of her efforts.