The overall purpose of this article is partly to give a brief overview of the TangO conceptual model, partly to explore the Jini technology as a means for support of pervasive systems in general and the TangO conceptual model in particular, and to emphasize the advantages and weaknesses of the Jini technology for ubiquitous computing. We will validate our survey of the Jini Technology against the TangO model in general, and through an implementation of a Pervasive Shopping Mall in particular.