In the main, decentralized community (small player?) centered networking. Mesh ++. I admit it's some time since I thought about it but OLPC is what came to mind.
Within the transport network itself, localised dendritic trust relations (and corresponding transport flows) will all but certainly emerge. There might be some ad-hoc leaf-node communications, but standard, equipment, maintenance, etc., all favour some level of centralisation.
Note that "some level" != "complete and total".