Well.... Fully supported is probably a pipe dream We are in beta after all.
But its something that is being worked on. Brian is off on vacation this week and this has in large part been something he has been working on.
I know that he has several versions of this working. Is there a particular style of headless development you are looking for? vfb, adl, vnc?
Hopefully when Brian gets back he can get what he has pushed into github and we can evaluate the progress.
That being said, we would welcome any contributions you might have to the solution.