BoingBoing has a series of tips from a Japanese pro photographer who takes amazing iPhone pictures in his spare time.
“Always be on the lookout for change, whether that’s lighting, or the movement of people, or just a slight difference in something ordinary.”
“Walk a lot. The iPhone camera has a fixed focal length. Whether you enliven or kill this feature is up to your footwork. If you need a close up, get real close. If you need distance, you exaggerate that distance. You use your feet to find angles. It’s also important to venture far away from your comfort zone to find good subjects to shoot.”