By SAUL HANSELL, The New York TimesHere's a consolation prize to the millions who recoil in bafflement from cellphone companies’ labyrinthine price plans, with their ever more intricate arrays of minutes, messages and megabytes: Economists don’t understand them, either.“The whole pricing thing is weird,” said Barry Nalebuff, an economics professor at the Yale School of Management. “You pay $60 to
