Grindr is a location based service for gay men. It is available for the iPhone and the Blackberry.
The application uses your current location to instantly connect you with other gay men in your area. When you launch Grindr you will be shown local guys (the closest appear first) and you can choose to view pictures, stats and their location on Google Maps.
Men who appear with a green dot are currently online and ready to chat. Those shown with a yellow star is a favorite and will always appear in your Grindr application.