Carl and I grabbed an interview with Dino Esposito in a quiet room during the conference, his viewpoint on Silverlight and ASP.NET technologies is always interesting.
Dino's session on "What Partial Rendering is not AJAX" rang true for me as well - his point is that the essence of AJAX is pushing page rendering to the browser, rather than computing it on the server. But partial rendering still computes the HTML on the server and sends it to the browser to display. This undermines the goal of AJAX.
I had last session of the day (and conference) and a huge crowd for my load testing talk today, as usual there were relatively few folks in the audience that had done load testing before, so a lot of my talk focused on the fundamentals of why and where for load testing. The data we've gathered around Strangeloop is great stuff for getting people started.