This chapter presents two main aims: it first introduces a new theoretical concept – mobilism – and second, it aims to translate this concept into a possible empirical application. The example used for the translation process is media use in the context of homelessness. The mobility turn in the social sciences is not a new phenomenon. Tim Cresswell's above-mentioned remark that 'mobility was not invented by the mobile phone' provides one of the best summaries of the relationship between mobility and media. The concept that tries to bring together the above-mentioned frameworks is called 'mobilism'. This concept combines the aforementioned focus on mobilities with a focus on mobile media use and thereby provides a perspective. The general spread of digital, personalized media – which are often mobile media in terms the devices – allow certain fixities, since many things can be done virtually that before would have afforded physical movement.