Joel is a fellow RD who will be covering two of the PDC panels. I will be covering one myself (Client Architecture: The Zen of Data-Driven Applications). The idea behind the panels is interesting: put some authoritative Microsofties with a few hundred geeks, let the geeks fire at will and see if the Microsofties can come alive and complete... To put some order in this potential mare magnum, PDC Bloggers has setup a site where people can submit questions, vote for them and finally review the answers (and, of course, criticize them). Neat.