Coming from the Droid, I wanted and do want the iPhone. After using the 4.3 inch screen, I won't go to 3.5 inches to get it. The X feels smaller in the pocket than the Droid. I think 5 inches may be the perfect size. I do know that 3.5 isn't. I can't imagine anyone that has used an X screen being satisfied with the size of an iPhone screen irrespective of the screen resolution.