Grindr for PC is the most used application worldwide by the gay community. This app allows users to install it on your smartphone geographically locate and communicate with gay or bisexual men who are near your device. Its interface shows a mosaic of photographs of men having the connected application, ordered according to their proximity. Playing (in the image) will show a brief profile of the selected user and options write, send photos or share your location. I am sure that will be very good during the 2013 Gay pride festivities.
Unfortunately this application only is available for men and not for women, who must use other apps like Brenda (much more limited and less used than Grindr) to find other related women. It is application that can be found for free in App Store both for Android and iOS.