In a nutshell, it's like "Hot or Not" with GPS tracking. If you join, it automatically pulls in your facebook profile picture. It then shows you pictures of girls within a 50 mile radius grouped by similar likes and friends. You simply click yes or no on whether you want to meet them or not. If you both say yes, you are connected and can message each other. It's so simple and so brilliant. It's 100% the next huge thing.
PS - I'm so mad I didn't invent this. It's such a no-brainer, any guy could have invented this. It's like having infrared on the smokeshows in your neighborhood.