I am hacking my way through the process to develop a good set of patches to disable non-critical UI based (and telephony based) sub-systems. I created a Patches page where I posted my first patch.
I've got a lot more to do, but I've got some other work for the next couple of weeks that will take a bit of my time. Stripping out the dependance on the UI is the next piece of work to tackle. I'm hoping to get some tips at the conference in a couple of weeks that will make that job much easier.