PLEASE SEE BRANCH: "act-async-mapper"
- I was only able to get this approach to work (and had trouble with the implementation on "master")
https://gist.github.com/3038878
http://code.google.com/p/google-web-toolkit/issues/detail?id=5129
https://github.com/zarinfam/hello-mvp-async
Test app for RunAsync using Activity/Places/MVP/GIN