The iPhone app iSwimNude
iSwimNude is the App for the naturist. It'll show you where other people go swimming in the nude and allows you to post your own locations.
Contrary to many other programs iSwimNude works without the need to create an account and to enter any personal data.
iSwimNude can be loaded from the App Store. The program does need an internet connection and access to the location services of the device. Since the iPod touch does not have GPS, iSwimNude works on the iPod only within the limitations of the device (location services via WiFi may or may not work).
The app is translated into English, German, Danish, and Ukrainian. Thanks for the Danish translation to Jens Rasmussen of Danske Naturister strandguide.dk. Thank to Oleg for the Ukrainian translation.