Could something like this could completely hose all the ISP's if open sourced and if it works well? Here's the concept: People like the dd wrt folks could customize router firmware to act as repeaters and whoever wants can set up relay stations with home type routers, weatherproofed and sitting on a pole outside if need be, creating a de facto municipal wireless broadband network without needing ISP's. I guess some question are: how to hook it up to the regular Internet's backbone, address space, etc. Could a Gorilla Internet be created with something like this?
Not really, as the beamwidth on these antennas is 1 degree. You would need multiple antennas aimed at multiple neighbors. This seems strictly point-to-point back-haul.
Where there's a will, there's a relative.