I have spoken to a couple of customers and they are actively deploying WiSMs in their Core switches. Both customers said this was proposed by Cisco directly. I was slightly shocked at this since I have always believed the Golden rule is to keep the Core as that - a Core that switches packets, not a Core/Services node.
In all the design guides I have seen a separate Services module is usually deployed to accomodate these types of services. Why would Cisco recommend deploying WiSMs in Core switches?