Om Malik is reporting that Google is making a big to build a city-wide free wifi network in San Francisco.

Google officials say San Francisco residents (and visitors) will enjoy a free 300 kilobits per second, always on connection anywhere in the city. As part of its proposal, the company says it will be offering wholesale access to other service providers, who will offer higher throughput connections to their customers. Google says it plans to use its own authentication services. (That explains the Google WiFi VPN client to some extent). The company is going to use San Diego-based WFI, a cellular network builder company to build out the WiFi network.