http://server-monitor.herokuapp.com/ is open-source (MIT), and use the Opa framework (also open-source, MIT). The Dropbox-as-a-Database is integrated in Opa by default.

The license has changed, read http://blog.opalang.org/2012/05/opa-license-change-not-just-...

The source code is released on github with a delay of several days.

thanks for the update! :-)

You are probably referring to this article http://blog.opalang.org/2012/04/one-web-app-one-language.htm... "[Opa] automatically determine where the code should run..."

And some previous discussion: http://news.ycombinator.com/item?id=3858838