Mobile business (m-Business) has the potential to provide value to the modern organization throughout its primary and support activities, by enhancing the many types of interactions that take place between employees, customers and systems. This paper presents a business-centric model of mobile interactions and further explores these interactions across organizational activities within the framework of Porter?s value chain. Several illustrative real-world examples are outlined to demonstrate how mobile technologies are deployed within organizations. Finally, a discussion is provided for the expected benefits and relevant concerns of using mobile technologies within organizations.