Just saw an interesting blog entry on the Amis blog site about creating a Web Service with WSIF bindings for SOAP and Java. This is just the sort of thing that JDeveloper does for you. The article also shows how to consume Web Services using the WSIF framework, something that JDeveloper doesn't do yet (unless the JDeveloper team know different, Shay, Sue, Grant, Steve?).
I think WSIF is a great example of redirection at work, giving us the ability to write code that is both location unaware as well as impementation unaware.