After my first conversation with him, my understanding is that he re-writes the whole thing and gets rid of all the stuff we don't need.
This was always my logic on it, it is simply a computer which will do what ever you programme it to do. The screen is just a screen and the dash buttons are triggers, which are programmable.
He apparently is contacting a friend in Japan regarding the NM35 system. Could all be a waste of time, just have to wait and see.
Even if this guy isn't the man, I do believe re-writing is the solution.