It's true. I repeatedly leave my Nikon at home and travel with an iPhone only. Although, and even although I use only one iPhone photography App regularly - Pano. And another one from time to time - TiltShift Generator.
Dan Marcolina, on the other hand has 47 Apps in total to present. Think of the possibilities. It's virtual lenses, virtual filters, virtual camera backs, virtual darkrooms. And a film camera. All combined and crammed into your telephone.
We are entering a completely new world of photography. Watch the ad!