The convergence of mobile technologies and ubiquitous computing is creating a world where information-rich environments may be mapped directly onto urban topologies. This book tracks the history and genesis of locative and wearable media and the ground-breaking work of pioneer artists in the field. It examines changing concepts of space and place for a wide range of traditional disciplines ranging from Anthropology, Sociology, Fine Art and Architecture to Cultural and Media Studies, Fashion and Graphic design. Mobile and Pervasive media are beginning to proliferate in the landscape of computer mediated interaction in public space through the emergence of smartphone technologies such as the iPhone, cloud computing extended wifi services and the semantic web in cities. These dispersed forms of interaction raise a whole series of questions on the nature of narrative and communication, particularly in relation to an audience's new modes of mobile participation and reception. These issues are explored through a series of focused essays by leading theorists, seminal case studies and practitioner interviews with artists at the cutting edge of these technologies, who are extending the potential of the medium to enhance and critique technological culture. By emphasizing the role of the audience in this nomadic environment, the collection traces the history and development of 'ambulant' artistic practice in this new domain, creating an essential handbook for those wishing to understand the dominant global technology of the 21st Century and its implications for Art, Culture and Audience.