"FON is the largest WiFi community in the world. Community members, known as 'Foneros', share some of their home Internet connection and in return gain access to free Wifi worldwide."

The device that is used to provide the connectivity is the La Fonera (a.k.a. FON), a single Ethernet Port Wireless router with a standard range between 10-50 meters depending on the environment.

The FON is a relatively simple and inexpensive router, built on the AR531x/231x Atheros WiSoC (Wireless System-on-a-Chip), a platform for which the OpenWRT project recently added a Hardware Abstraction Layer (HAL), i.e. the OpenWRT firmware can be deployed on the FON. In short, the FON has all the attributes required to be added to digital playground.