For me replacing a perfectly good button with a haptic feedback screen that tries to mimic it seems kind of backwards. I think the problem would go away if we could just make the good old buttons look sexy again...

On the other hand I'd like to replace the +/- buttons entirely with a small touch sensitive strip that would function as a analog slider. You could use it to adjust screen brightness or volume, scroll, pan, zoom, you name it. Conveniently located under the left index finger, no need to look because it's just there and there's no screen behind it.

Couple this with a D-pad under the thumb and it's just pure controlling bliss all the way