I have recently attended one MSDN event that covered 3 topics - LINQ, WCF and Silverlight. I was looking forward to this event because I had hoped to gain something about WCF and LINQ. During the presentation, the speaker ended up spending a lot of time on LINQ and Silverlight; whereas, he pretty much zoomed through WCF. That was very disappointing considering my interest on Silverlight (or Microsoft's Flash) is non-existent.
In any case, I know I will be delving deeper into WCF (and possibly LINQ) in the upcoming months.