With the modern day imperative of individuals being perennially on the move in order to keep pace with their work and business lives, the notion of "mobile collaboration" has come to assume a great deal of importance, both among scholars and practitioners. While the literature continues to extol the promises and virtues of mobility, there have been few illustrations on what collaboration means under conditions of mobility, and how it actually occurs. This paper takes a preliminary step toward clarifying the notion of mobile collaboration and developing a set of integrative themes capturing its essence. © 2007 IEEE.