I have a feeling that enough people agree with you on this that regardless of the legal / regulatory situation, a social framework is going to emerge that prett

I have a feeling that enough people agree with you on this that regardless of the legal / regulatory situation, a social framework is going to emerge that pretty strongly discourages talking on the phone on a plane. Even today, if you talk for too long or too loudly on an Amtrak train or a public bus, you'll get some pretty strong death stares from other passengers. Many will come right out and tell you to shut up. If the rules fail us, peer pressure will step up :)