Yeah, what I work on is quite similar to dabbledb. There are some differences of course. One of the most important differences is that my system will not only be available as a cloud service, but companies can run their own server if they want. The server software is extremely simple in this sense: it needs zero configuration, it embeds an open source db engine (Derby) and an open source web server (Jetty). Basically the server just needs to be copied an run and that's all. It is also operating-system independent (provided that a JVM is available).