When I use anything dependent on direction (North, etc.) such as a map or a star finder (but not one of the compass apps I have) the display is about 35-45 degrees off to one side. When progressing down a street, the cursor shows that the car is pointed off to the west about 40 degrees, so the car is supposedly slipping sideways. When I try to use the star finder, I have to guess how far off it is, and I'm not smart enough to do this accurately. This was true with my former iPhone 4S. Still true with the new phone. Does anyone have any experience with this? Thanks.