Interesting. I think it would be nice to see every payphone turned into a wifi hotspot wired into a city wide network. This serves two things: 1) City wide wifi (Don't we all want that?) 2)Payphones are then just VOIP handsets with a payment machine attached. Win-Win

Payphone fees could probably be reduced but maybe not. Maybe the money collected from the payphones is used to (partially?) offset the costs of running the city wide network.