“The paper describes developments to date in ambient intelligence and its closely related counterpart, ubiquitous computing and communication. It discusses the driving forces behind this digital information technology, describes the equipment and devices involved, the obstacles to implementing ambient intelligence on a large scale in real-world scenarios, and considers the future outlook. The authors believe that the introduction of this digital information technology will have wide-ranging implications, which will for the most part be beneficial and valuable.” (Mahesh S. Raisinghani et al. – Journal of Digital Information 5.4)