I know there was a study many years ago that said teflon-butterfly valves in the throttle body of a carburated engine would eliminate most carb icing issues, as it simply could not adhere, a relatively simple solution, but for some other reasons (price?) it wasn't practical.

This is cool technology though. Oil-phobic in addition to water-phobic and it simply won't adhere.

I've always wondered why we can't spray down our planes with some good ole Pam at night prior to a snowstorm