You might have seen commits from Angelo and me related to the Vaadin based UI. At ApacheCon we started some work on this, and for now we have both the GWT and the Vaadin based UIs side by side at different endpoints: /webui and /ace. The Vaadin one is not yet complete, so some things must still be done with the GWT one but as long as you "retrieve" and "store" your changes, you can use both UIs.
It's still very much work in progress, but coming along nicely! Greetings, Marcel
