While many photography applications like iPhoto and Aperture can make use of GPS information in terms of grouping pictures by location, there aren't a lot of cameras that have built-in GPS receivers. Of course, that's not a problem if you do all or most of your photography with an iPhone, since all photos taken with the Camera app are automatically stamped with the latitude and longitude of the spot where the image was captured. But what do photographers do when taking photos with their favorite DSLR or compact camera that doesn't have a GPS receiver? That's where GPS4CAM (US$2.99) comes into play.
The app, which doesn't require attachme
