If you live in a major city, it may seem as if all the cool kids have iPhones. While a good number of them do, it took Apple's smartphone a good bit of time to take off in celebrity circles where BlackBerrys reigned supreme. That's why there are so many hot celebrities that use RIM's smartphone. Check out the 10 Hottest Celebrity BlackBerry users if you don't believe us. Times have changed, however, and now the stars have started to jumped ship. Begging the question: Which platform has hotter users? BlackBerry or iPhone?