AT&T announced today that it will be adding free WiFi to 26 locations in 20 New York City parks. The free WiFi is available to all, AT&T customers and non-customers. The service rolled out to three parks today, with 23 additional parks to follow this summer. Nothing is cheaper than free, and it is hard to complain about quality of service when you are paying nothing out of pocket. Although free WiFi services have been talked about for years, free WiFi hotspots have yet to spread city-wide in the US.