After sitting through half a day of MIX07, I have finally seen something that crystallized my disquiet about AJAX. Having seen the tortured workflow involved in developing any substantial Javascript-based web app and wondered about a whole new class of as-yet-undiscovered client-side Javascript attacks on AJAX applications, I have been loathe to advocate for wholesale AJAX adoption. What made me see the light was Silverlight. I had been mildly interested in Silverlight, and knew that a cross-platform version of the CLR was involved. But what put it over the top for me was seeing remote, interactive debugging of a Silverlight application...