I think, before I made any sound observations, I'd want to know more about your use case and what functional effects are exposed by this particular POST.
In general, there's nothing illicit about POST returning either a meaningful representation, or a redirect. Either of these are the two most common choices. I don't think the concept of "forwarding" maps especially well on to the REST style, since it is all about internally returning the representation of a resource other than the one addressed by the client. You can achieve it in Restlet by executing a client operation inside your POSTable resource (and in Restlet 1.1 you can use the addressable server router on the Component to do this efficiently), but it looks exactly like the sleight of hand it is. - Rob
