I don't have an iPhone but I have an iPod Touch, which, when I got it, I figured would not be of much use to me. I was wrong. Because of apps, I use the little bugger all the time - my iPod touch is always at hand. I know people who won't make a move without their iPhone, or some other-brand sort-of equivalents. They app themselves through each day. Do you?
The people at Apple told me, "It's the apps!" when I asked them what's so cool about these iPods and iPhones. And they are dead spot on. On Twitter (get an account...