Thanks I knew about those but my original reasoning was when using 'Maps' being able to swipe down Notification Center quickly while driving and be able to control Music, off course a full integration is not realistic but atleast a <-- --> control along with maybe the option to shuffle.
I usually leave iPhone unlocked when using Maps because it switches to portrait mode once locked. With that said if I start using Maps while it's locked it will allow me to quickly double tap home button and switch tracks.