Now that the JSON-RPC server is secured by a username and password (although not encrypted), I would really like the option of being able to bind bitcoind to another IP and/or port. For example, I have a handful of nodes that all have a public interface and a local interface. I would like to be able to bind bitcoind to an IP on my internal interface so that I can monitor and manage the node from one server.
Really, it should bind to *, and then filter out requests from addresses other than those on a filter-list.