Jeff Pulver has a useful update of state proceedings to consider the regulatory status of VoIP. Public choice theory devotees might try to predict the outcomes of the various proceedings based on the access-dependence of the rural incumbents' in the various states. Through this prism, Alabama, North Dakota, Minnesota and Utah would be the most likely to give in to the impulse to regulate VoIP. Minnesota of course has already tried, and Calfornia sure seems to want to.