I don't have a Plus but I'm planning on getting one asap. My understanding is that unlike other iPhones it will actually shift its orientation, iPad-like, to be upside down if you hold it upside down. My question is this: has anyone tried using the device purposely upside down all the time? Obviously this wouldn't work well for phone calls or FaceTime, but other than that -- why not keep the home button permanently at the top and make the phone way easier to use?