Want to download and watch all PDC content? Then there are a couple of ways to get at them. The official way if to go through the session agenda at the conference site. See https://sessions.microsoftpdc.com/public/timeline.aspx . You see all sessions...
As far as I am concerned Silverlight 2 is pretty cool and should have been developed years ago . Well guess that isn't the case but it is here now. One thing I like about Silverlight is how easy it is to call a web service. I guess that is a must...