Mobile devices increasingly offer functionality beyond the one provided by traditional resources - processor, memory and applications. This includes, for example, integrated multimedia equipment, intelligent positioning systems, and different kinds of integrated or accessible sensors. For future generation Grids to be truly ubiquitous we must find ways to compensate for the limitations inherent in these devices and integrate them into the Grid, in order to leverage available resources and broaden the range of supplied services. The unreliability and limitations surrounding the mobile resources and services could significantly degrade the overall Grid availability and performance. In this paper, we propose the utilization of various mobile devices in the form of a single virtual wireless "cluster" that will hide the heterogeneity and dynamicity, mask the failures and quietly recover from them, provide centralized management and monitoring and allow for the federation of similar services or resources towards advanced functionality, quality of service, and enhanced performance. Finally, we present and analyze the results from the simulative performance evaluation of this design.