We're long time users of Activiti and have built a substantial app around an embedded use of the Activiti engine. Users build workflows using the Eclipse Designer extended by our custom tasks (really just helpers for the JavaDelegates).
Question #1: Could we "embed" the V6 UI?
In our web front end, would be very slick to have an "edit" button that spins up the V6 UI, edits and saves the workflows, and add a button to the editor to "deploy". Currently users edit in Eclipse and manually upload to our webapp and we deploy into Activiti.
Question #2: Is there / will there be an extension mechanism like the Eclipse based editor?
We find the shortcuts created in Eclipse very handy.