iPhone.. because all the other cool photographers in town use an iPhone and when we have meetups you will be scoffed at for the rest of the evening if you don't have one. That's why
I use a blackberry curve. For what it does, it suits me well! For all those who require iphones to display their work to friends, clients and each other. I'll just roll up in your group and whip out my Mac Book Pro...no more squinting!
2 of my bosses use iphones tho. I hear they can't copy & paste? BB FTW!