WiFi users, take note and call your alderman: Taking Philadelphia's lead, Chicago officials are developing plans for a ubiquitous WiFi network made up of about 7500 antennae attached to telephone or light poles throughout the city. It won't be free, though. "If you looked at 500,000 Chicago households that presently are accessing the Internet and multiply that by $20 [a month], that could be a huge amount of money," Alderman Ed Burke told the Tribune.