Can you comment here on the relationship to the common identity work that is going on (so others can see quickly)?
Sorry for the late response as I was on vocation.
Baiscally, I will define the Guvnor specific identity API, like User, Role etc, then will use the common identity project as default implementation.
I will post more here after I finish them, as I will use the gwt-rpc protocol to talk to server side. right now, I just use the GWT-EXT to have some UI with mock data to illustrate my thoughts on its requirement.