Summary: The rapid development of mobile communication points to an overall change in society towards a more nomadic lifestyle. Apart from the technological aspect, other criteria also indicate such change. This article analyses the quasi-anthropological dimensions of the phenomenon, and the mutations in ways of working and in the very notion of a tool used to communicate in mobile situations. Clearly, with the spread of mobile terminals, the concept of a network is set to change. Hitherto associated with the rationality of the State and its control over a territory, how can networks avoid this control without changing fundamentally?