Out of curiosity, why would you move the power button to the top? I remember this was the configuration for the old iPod Touch, but with the power button along the side, it's easier to press the power button with your thumb in one-handed use.
checks screenshots folder
$78 dollars!
"the top button was renamed to "side button" and moved to the side of the phone instead of the top to improve its accessibility."
I suppose when you're turning the phone off, you can easily shift your grip to hit the top. I still wouldn't think to put the power button there, though.