Longdistance Links - the WILD project

I am very interested in the work being done by the University of California at Berkeley and their WILD project. They have been experimenting in several countries, including Ghana in the deployment of modified wifi technology to build very long distance Internet links out into remote areas of the country. 20-80 kms seems feasible now. It is exactly what community radio stations need, and the advantage is that in most cases they already have the tower in the place!