As you may know, Apple’s iOS 4.1 software update brings a cool new feature to the iPhone’s Camera app. Dubbed “HDR” (which stands for “high dynamic range” photography), this new mode of taking digital photos is pretty clever. If you want to check out exactly why you should be excited about HDR photography, check out our article here . However, for some time now, another application has been able to produce HDR digital photographs on iPhone 3GS handsets