First post ever: I've had bitcoin on my radar since early 2012 but I really only have a layman's understanding of what is possible.
I'm interested in location-based potential of bitcoin and wanted to know if there is a wallet or some kind of app that could be designed to let users "detect" other nearby users and send money to their public keys. Is this already possible?
Why would you even want this? I suspect there will be all sorts of different wallets with all sorts of features in the future. I think they need to add more security features.