Please add the possibility to center the current location of device in a map. When you're moving the screen should move along the path you ride or walk also north orientated. Think about Google Maps or the way Apple does.
In the current situation we have to move the map mannualy when the user moves in his vehicle. This means he has to search his own location by swiping in the map or touch the my location button. When you add this possibility you create an whole new dynamic workflow where-in users can work without interaction of themselves.