Modified Photo with "PS Mobile"
I love the new iPhone app "PS Mobile" Get yours free at the Apple App Store. You can adjust the exposure, saturation, tint, and convert your photo to black and white. I purchased CameraFD which supposedly would emulate a flash to your photo. It does an ok job but PS Mobile seems to do about the same thing, but it is FREE. You can also Crop, Rotate, and Flip your pictures. When you save a picture it saves a duplicate so you are not replacing your original photo.