MacBook Air, MacBook Pro, and iMac all come in different sizes. I believe the next generation iPhone should as well. Am I wrong on this one? Is there not a big enough group of people who would enjoy a 5 inch screen? I am able to manage online stores and sales to an extent with my current iPhone 5, but, a bigger screen would just make things easier for me at least. I can think of a few reasons why I would love a bigger iPhone, but what are all the disadvantages of producing a 5inch iPhone?