SnapN'Share, the first sample application that makes use of the Comm.unity platform, runs on wireless mobile devices and stationary computers, and enables users to generate and seamlessly share content with groups and communities as they come within close proximity of their peers. The system offers local filtering of content, exposing users to what is locally relevant, and also allowing new introductions to occur in the physical space. It enables communication based on groups and context�"Virtual Spaces" are created for different social groups (friends, family, classmates). The system allows for the easy creation of ad hoc or time-limited groups (e.g., meeting attendees or people going on a trip together). SnapN'Share includes multiple features related to trust and identity, allowing the differentiation between strangers and familiar peers, and configuration of varying degrees of trust and privacy. Finally, the system offers all of the inherent features of the Comm.unity platform.