Proof of concept, to be sure. So far. It's currently on the back burner because I have to eat : - )

Re applications, anything interactive and somewhat loosely coupled. Particularly good for internet scale stuff, I suspect, though again I've not rigorously explored this yet. Tightly coupled control isn't a great fit. I suspect some aspects of robotics could work well with it, but not the very realtime parts. I'm not experienced in robotics.