The iPhone does not need proof that it is the post popular smart phone of today, but if it did, it would be the simple fact that all online UK and US stores do not have any iPhones left. They are all completely sold out. There may be some left through Apple retail stores and AT&T, but for those who are not luck enough to find one, the new iPhone is coming out shortly. It is worth the wait in any case to get the new improved phone.