iOS: If you're sick of having to look at your iPhone screen just to control your music playback, Listen is an app that ditches traditional playback controls and uses gestures instead.
Listen uses gestures to control everything in the music player. You'll swipe to change songs and move between menus, and a simple tap is enough to pause or start the music. This way, you can control your music playback without having to look at the screen nearly as much as normal.
It's not perfect. Some of the gesture end up being more complicated than an actual button. That said, if you're at the gym or driving a car and want a music player you don't have to look at, Listen's worth the download. If it's not quite what you're looking for, In:play has a similar premise and is also worth checking out.
Listen: The Gesture Music Player (Free) [iTunes App Store]