Yes, already cloned it. I'll try to add some things.
I already deployed the war file in a bonita bundle. I'm planning to add the possibility to list processes, tasks, ... In fact, more or less administrate a bonita engine. I think it may be quiet easy (and as we embed xCMIS, your exo-JCR plugin may be useful...)
I still have some issues with the attach mode, but I'll create an other thread if needed when I'll investigate it.