The iPhone is smaller than most cameras. This makes it easier to position it in places you couldn’t place a DSLR[...] The iPhone’s small scale also changes interpersonal dynamics between the photographer and human subjects; people feel more at ease with what’s perceived as a more casual act, you can make contact with both eyes, and allowing the subject to see the picture while it’s being made (instead of after) provides a dynamic feedback loop of action and reaction or pose and repose.
Don't knock it, photo snobs. Still, I'm glad no one is asking me to edit iPhone photos. (Yet.)