Found in this article about next generation phone apps with interesting identity applications.
Curious about the people around you? Pantopic takes the openness, and, well, ‘browseability’ of an online community into the real world. Once you install pantopic, your phone becomes like a webpage that only people in your immediate area can read.
The fun part comes when you link up with pantopic groups in your area. Once you do, you’ll be able to get information about who your friends are hanging out with, and where. It’s going to be a few years before a lot of people have this technology. Pantopic tries to solve the saturation problem by focusing on seeing activity in your groups.