“Once someone has an iPhone, it is going to be tough to persuade them that they also need to spend money on and carry around a dedicated GPS device, point-and-shoot camera, or tape recorder unless they have an unusual need.” from here.
I’m not an iPhone user, simply because I can’t afford the monthly charges. However, even if I were, I would not give up my beloved point-and-shoot. I like taking photos, and there just isn’t as much quality or control with any iPhone.
Having said that, it is amazing all the things that an iPhone can do. It’s the Swiss Army Knife of the late 00’s.