The point of WiMax is relocalize information sharing, with the city as an almost optimal discrete size of ecosystem, since that is the territory size that has conformed the traditional administrative organizations.
Something I am working on is a proposal for how even smaller units of the city -ie neighbourhoods - can be nodes in a metropolitan system that connect all the people who might physically meet, whether sellers, buyers, servers, suppliers or whatever, and lift the information exchange level at these nodes to make them better places to live in. These hood nodes are then connected together to form the virtual/real city.
The ultimate political aim of the proposal is to bypass representative government, and corporations, in true bottom up style ;-). You can't be me, I'm taken