Observed on iOS 8 (β 3).
Here are three different screens on iOS. All of them allow you to control whatever media you have playing (in my case, an excellent remaster of Distintegration):
From left to right: the Music app's "Now Playing" screen, the iOS control center and the lock screen.
Three contexts. Three very different locations for the play controls. Can this be a little more consistent? At least keep them on the bottom half of the screen so they're easier to reach?
I'd also appreciate some distance (or simple removal) of the volume controls.
Apple, please fix that.