Great to see Aaron continuing to give WSE 3.0 love in his Service Station column. Now I just have to finish my "WCF for WSE Developers" article which keeps looking back at me half finished from my desk as a pile of scribbled notes. Currently I am attempting to churn out the security conceptual documentation for WCF along with Gudge and Jan, so you can blame/praise us for the final version. Suffice to say that there is plenty to explain given that security is a sprawling topic :-)