The ColdBox Proxy also has the ability to use the request context's renderData() method. So you can build a system that just uses this functionality to transform data into multiple requests. Even have the ability for the same handler to respond to REST/SOAP and MVC all in one method:
Event Handler:
Proxy:
This handler can now respond to HTML requests, SOAP requests, Flex/Air Requests and even RESTFul requests. How about that!