WCF 4.0 routing

In previous post, I've created the top layer of my application architecture using Unity 2.0 and WCF.In this post I would like to add the final building block of the application server : "The WCF Router service". WCF routing is a very cool feature in WCF 4.0 that can provides a method for isolating or encapsulating your services from your client,Exposing it only to a router service that will be