This started happening to me on beta 4. Don't actually know if it's a bug or a new feature. Before… When I would be using navigation, the whole lock screen would be used to show the map and stuff. And the time and "slide to unlock" was kind of overlaid on top of the map. Now… I only get map in the little window between the slide to unlock bar and the upper time and date area. Kind of like how it was on iOS 6. Anyone else? EDIT: I have a picture, but it doesn't seem to want to upload from my phone. Maybe another iOS 8 bug?