Grindr

By now you have probably heard of the GPS tracking app called grindr that alerts gay men when others looking for a hookup are in close proximity. Well, good news boys and girls, the wait is over and this service will soon be available for you too! Just imagine all of the creepy dudes waiting for you to walk within 400 feet of them.

http://www.huffingtonpost.com/2011/02/07/grindr-app-goes-straightb_n_819446.html