Towers schmowers! This portable RF antenna lets your phone work like a walkie-talkie, sending messages and GPS coordinates with no cellular connection required.
Let this be noted as the first steps to a second internet, a system independent of government/corporation. A net of people, uncontrolled, private, and free. A background app could act as a repeater to selectively forward messages similar to the way TCP/IP works for the internet, inside switches and routers. With enough users and available frequencies, this gizmo could make for some huge changes.
To those with the technical know-how, run with it.