A friend who reads this blog (Hi Johan!) mentioned that I seem to have stopped on the Dubbiya project (my in-the-browser database entity-relationship design tool).
He's right. I'm just taking a summer pause. First I suffered some "analysis paralysis" as I worked out how to handle saving data models "in the cloud". Then I tried to use Dubbiya to design a real-life data model I needed - and found that actually I've got a lot still to do to make it useful. However being the middle of summer it was time to visit people and be visited. For the next month or two, little or nothing will continue to take place on Dubbiya. After summer though, I've got plans. Big plans!