This paper describes a GEMISIS doctoral research project nearing completion at the University of Salford, U.K. and offers some preliminary findings. The aim of the project was to design an interactive multimedia application, for a portable computer in a museum setting, to assess the application as an aid to interpretation and to examine its impact on the visitor's understanding and enjoyment of the museum experience. It will discuss the introduction of portable computers into museum galleries, briefly describe the design and development process of the interactive multimedia application, review the methodology employed and provide a summary of preliminary findings.