Can you trace your cellphone-to-cellphone contacts, and conclude where a User is by comparing his environment? I always imagined for fun a "underground" interne

Can you trace your cellphone-to-cellphone contacts, and conclude where a User is by comparing his environment? I always imagined for fun a "underground" internet consisting of multicellular social-organism, that traffics data by handing packets over to another organism that is most likely to meet the user. In Reverse this approach could be used to trace a users propable location by finding in which social-organism s/he/it resides, and if that organism is showing its usual behaviour. (e.g. The morning Bus-To-Work always consists of a base set of workers and a set of drivers, the driver remaining constantly in it, the user has for last 2 years entered this organism at the same time and left at the same station, thus the packet can be entrusted to this organism, who will deliver it to the most likely organism the user contacted next).