I just gave this talk at the 2007 Design Research conference. Since I can't imagine a better combination of audience, conference subject, presentation topic, and program placement (I was the last speaker of the day), it's unlikely I'll ever give it again although it certainly is a lot of fun and the crowd seemed to enjoy it.
Supposedly a podcast will eventually be released as well.
Here are the presentation slides with my notes (9.5mb pdf). Realize that half of this presentation is in the performance. It might be like reading a transcript of The Colbert Report and wondering what was so funny about it.