I have read that you should have the phone in a standing up position with the screen facing you. A holster, or a case with a belt clip would work best for this purpose. Andy From: gps-talkusers-bounce@xxxxxxxxxxxxx [mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Michael Malver Sent: Friday, August 23, 2013 6:51 AM To: gps-talkusers@xxxxxxxxxxxxx Subject: [gps-talkusers] An extremely basic iPhone and gps question Hello, When I use my iPhone, I carry it in a bag, somewhat similar to a purse. The phone sits vertically in the bag so the power button is on the right. The pocket it is in is small, so the phone doesn't shift positions. I find that frequently, the iPhone tells me I'm traveling south when I'm traveling north, or east when I'm traveling west. It generally announces streets properly, but can mix up turns as it reverses my direction of travel. Both Google maps and blindsquare exhibit this behavior, so I figure it has to do with the iPhone rather than any specific app. Do I need to have the phone oriented a certain way for best results? Would an external gps receiver give me more accurate information? Thanks for any tips you can give.