Dear MacRumours users, I love my Navigon software, both when using it in the car, when biking and taking long walks (with the need of nav help). I do, however, not need the screen when biking, as I put the iPhone in my backpack and rely on the voice navigation. Unfortunately, I have been forced to leave the screen on when putting the iPhone in my backpack, as the navigation stops when turning of the screen. This is a complete waste of battery and screen-life. Does anyone know of a trick to prevent this? Thank you!