Well, Im a PC user using Vista and bought a iPhone, but to be honest.. Far as using Mac or PC, the only thing that interested me in that aspect is that the iPhone would sync my Outlook contacts, calendars etc.. But what really caught my interest in the phone, and not sure if anyone has thought about it in depth.. the iPhone IS a software driven phone. Which makes the device a very very versatile phone. a year or two down the line, update the iPhones OS and bang! new phone all over again or new capabilities. You do have to admit the phone has a possible promising future in software applications and expandability...
Think about it.. Think of what hardware is in the phone, and if you had free reign with the programming, what could you do with it? Lots!