I am really hoping that Apple makes the two iPhone 6's equivalents besides screen size. It really would not be a smart move to force people who don't want a phablet to have the lower-quality device. For example, there have been rumors that the 5.5" phone may be the only model to receive a pure sapphire front panel. I don't want a huge phone. A lot of people have iPhones and are happy with a 4-inch screen. Forcing people who don't want a giant phone to have a lower-quality screen is not a smart move. OIS had better be in both as well. Battery size of course is not applicable here as the 5.5" phone calls for (and has room for) a much larger battery. Think like the 21.5" and 27" iMacs - you just pick a screen size, they aren't different computers. The 27" does have advantages, and the 5.5" will (battery, 128GB option?), but you can still get a really good iMac in 21.5" size. I just don't want to feel like I am getting the cheaper, "6c"-like version of the phone. I want to buy a top-of-the-line phone that I can use comfortably, and if Apple can't do that, then that will be a shame.