After a beta period chock-full of Skype use among the nerd-elite, Google has finally opened up their free WiFi network to the 72,000 residents of Mountain View, CA. Speculation still abounds in regards to Google's eventual plans for world domination via municipal WiFi, but for now they claim their main reasons are to inspire other network providers, and so they can work on interoperability with WiFi devices. Google is a bit ahead of schedule with the network, which cost them $1 million to build, and covers 12 square miles with 380 light pole-mounted transceivers. Bandwidth tops out at 1 megabit per second, and Google is prepped to add more capacity if Mountain View types end up being heavy [Via GigaOM]