With the asp.net MVC framework the blogs of the team members (Rob Conery, Phil Haack etc) really helped me on my way and made me feel comfortable the development was going in the right direction. Is there something similar for Silverlight?
-Edit: I would like to mention that I would like to find members of the dev team themselves. Currently the support for Silverlight across OS and browser is just too poor to make me care and invest time in it. But I would like to keep a spying eye out so I can start caring when the framework fulfils it's potentials.