Any technology adoption is shaped by a myriad of factors that sometimes conflict in their ultimate goals and outcomes. So is the case with mobile Internet (m-Internet) adoption and diffusion. This paper discusses this process from the stakeholders' and users' perspectives and confronts their understanding and attitudes towards this technology with three complementary theoretical models: network theory, activity theory, and the technology acceptance model (TAM).The study presents results for the use of m-Internet in a southern European country and frames those in light of the activities, here understood as effects of the network, undertaken by the users. We seek to assess whether individuals perform a different set of activities when using m-Internet and how different forms of access result in different network effects, adoption processes, and distinct forms of interaction. The depicted study involved a qualitative stage, consisting of a set of interviews to stakeholders of the mobile communications industry and a quantitative study that involved the survey of a nationally representative sample of individual users. The findings of