I just put up the latest installment of the Technometria podcast at IT Conversations on AJAX Progress and Challenges. A few months ago, Bruce Grant, Ben Galbraith, and Scott Lemon were all at my CTO breakfast and we had a really good discussion of AJAX issues. I decided continuing that discussion in the form of a podcast would be fun. We're all local, so I got everyone together in a conference room and we each put on a headset. The result was a great discussion of the history, current state, and likely future of AJAX, Comet, and other interactive Web technologies.