Tropos Networks claims Cerritos is the first city in the U.S. to have complete residential, commercial, and municipal coverage of Wi-Fi: Tropos reseller Aiirmesh (that's no typo in their name) unwired the city using Tropos's mesh networking gear. The 8.9-square-mile city is part of greater Los Angeles.
For reasons not explained in the press release--possibly socioeconomic reasons--the area has no cable broadband coverage and limited DSL availability. The Airmesh service offers pay-as-you-go service (hourly, daily, and monthly rates), as well as commercial and residential offerings.