answer:They are working on it (and have been for a while) but the processing overhead for keeping track of nearby nodes and routing packets remains non-trivial. Hell, in Shadowrun, they had dragons and spell-casters in 2011, full-immersion neural interfaces for computers in 2029, and yet despite all those things, they couldn’t make a viable, wireless distributed mesh network until 2064! However, that was with nothing except the nodes; every commlink (the 2070 equivalent of a smartphone) was also a repeater/router. Something that has some form of infrastructure that frees the mobile device from the onerous task of routing would be far easier to implement. Still, the multi-billion dollar internet gaming industry would suffer immensely