This is pretty much what I want as well. I'm working on an app that is essentially your own Google Fusion Tables running local or on your own server. It includ

This is pretty much what I want as well. I'm working on an app that is essentially your own Google Fusion Tables running local or on your own server. It includes a CLI for running as a service (integration, etc), so plugins could be made that hook into your local editor. It's a JS-based data publishing platform. Btw, I was invited to YC interview round to show it. But sadly PG passed on it due to an enterprise strategy. :( Funny thing is I had an acquisition offer on the table during the YC meeting and subsequently closed a round. :)