I have the same issue as JDugdeon.  I would like to pass a WS-Security token through the Routing Service.  It seems as though the Routing Service can only act as a web service proxy (as opposed to a SOAP intermediary).  When configured as a proxy, it would seem that the binding of the proxy would need to match the requesting/responding service binding.  In that case, the proxy would probably not ignore (and pass) the WS-Security token.  Alternatively, a simpler binding might be used but then the security operations would need to be implemented without the benefit of the secure binding capabilites provided as part of the secure WCF binding.  Any guidance is appreciated.