Sonar, a location-based social networking app for Android and iOS, has exited beta and is now available in Google Play for free.
Although Sonar plugs into Facebook, LinkedIn, Twitter, and Foursquare to keep tabs on your existing friends, it can also be used as a discovery tool to meet new people. Users can broadcast their presence to other local Sonar users, or go black if they want to stay off the radar for awhile. All of the usual social elements are there, such as profiles, direct messages, updating statuses, and plenty more.
Ideally, I stick with Latitude to keep up on where my friends are, but they're often scattered across multiple networks with their check-ins, plus meeting new people with similar tastes in hang-outs is always a good thing. To what extent do you guys use location-based social networking? Is Foursquare as far as you go? Do you ever actually meet anyone thanks to these networks? Is this sort of thing creepy, or the natural evolution of online socializing?