Also, Apple now has a 3 year period before all phones offered for sale will all be 64-bit. OS7 is 64-bit on the 5S and I wonder when Android will be 64-bit? Samsung????
Apple makes these changes to set themselves up for something down the road. Nothing is by chance here. That goes for the finger print scanner...presented as a side note almost but where will it be in a year or 2. The operate on vision for the future not a flash today and gone tomorrow.