Good afternoon,
one of my expectations as a Software Developer in 2010 is, that the WCF RIA Services for Silverlight will become a huge thing. So I did some research, and found a nice webcast by Ronnie Sauermann from Microsoft Switzerland. I met him during a project I did last summer, and he has a very good way to explain things. check it out! I unfortunately found no way to directly bookmark the video. So click the link and navigate down to Ronnies Video about RIA Services.
WCF WIA Services Januar 2nd 2010