I was thinking about what a unique challenge Apple has in designing the battery for the Ip6. It looks like the battery team has to fit it into whatever area Sir Jonny gives them. I picked up a new HTC one the other day and was shocked at how heavy it was. Most of the weight is from the battery. So, hopefully, Apple will design a battery that is not like a brick, but with new processor software, shutting down things that aren't needed based on sensors, and still give us a 4.7 inch display at full HD or QHD.