The iP6+ is orientation neutral, just like the iPad, and unlike all other iPhones - so there is no real top and bottom on that device.Thinner, thinner....
Could they counterweight the bottom of the iPhone? Seriously. I have the 6+. Half the time, it feels like it's going to fall out of my hand because it feels top heavy in distribution. It could be the exact same weight from top to bottom, but if there were a little more substantial weight at the bottom, it would help in holding it.