Similar to professional photography setups, the main phone would be the master device, while the other iOS devices will act as slaves and will be triggered to fire off their flashes once the shutter on the main device goes off. Interestingly this patent even suggests that a test photo will first be captured in order for the other slave devices to adjust the intensity of their flashes, because obviously 5 iOS devices firing off their flashes at the same time at full intensity will result in a very badly taken photo. It’s an interesting idea but since it is only a patent, there’s no telling if Apple will ever implement such a feature, but iPhonegraphers, what do you guys think?