Patrick Copeland, Jeremy Clark and I (Alberto Savoia) have been presenting the pretotyping manifesto dozens of times but we never had a great video recording of it. Thanks to QCon 2010, we finally have a great video recording of our pretotyping manifesto presentation. Here's Patrick Copeland's keynote at QCon. He covers the Palm Pilot and the IBM speech-to-text example and does a smashing job with the "Innovator over Ideas" pitch!
http://www.infoq.com/presentations/QCon-Keynote-Innovation-at-Google
Enjoy!
Alberto