My dad and I came up with this idea a few months ago, and I've been meaning to post it here for a while but forgot to until recently. I just wanted to post it before the new iPhone gets announced so I can see if the prediction is right and prove that it was thought up before the announcement. When I was telling my dad about the rumors that the iPhone screen would be taller but not wider, he mentioned the possibility that they'll use that extra space to have a special UI component such as a menu. Then it occurred to me that MacRumors had stated the screen would be just tall enough to allow one more row of apps on the home screen, and I realized that that height difference perfectly allows the multitasking bar to be on-screen at all times. Think about it: just like with the iPad, the home button would never really have to be used again. There could be a home icon and even a Siri icon on the multitasking bar, and it would always be up and easily accessible. You could get rid of it if you wanted to, like if you wanted the full screen to watch a movie for instance. Maybe it won't happen, but I just figured that Apple wouldn't do something as odd as increasing just the screen's height without having a specific reason for it. I guess we'll see soon enough though.