If you understand why locational-based social networking sites, such as FourSquare, GoWalla, and Facebook Places are prone to cause paranoia and privacy concerns among its users, and if you comprehend the usefulness of sharing where you are to specific contacts in your rolodex (without announcing that location to the world), then you will love Glympse.
The tool is reminiscent of Google Latitude meeting a text message.
While metrics showing website visitors are not spectacular, the tool shines on any mobile device that can transmit GPS information.
Mark Pack opines how Glympse could be used in political campaigns, as one instance of its utility:
[I]magine a councillor doing a roving street surgery in an area and using the tool to make it easy for residents to find them. Or a candidate out canvassing and making it easy for people to see when they are round the corner from their street so they can pop out and talk to them.