Is anyone else having issues with their iphone4 GPS accuracy? I have full 3G in London on O2 at home and the local area and generally a good signal when out and about. My location is always out by a mile. The blue locator circle never gets smaller than my iphone screen and it never shows the blue dot by itself and moving as i move...like it would have on my last 3GS. Guess its faulty, but it has been happening to my friends too...all of them on O2 as well. Although this may be coincidence. The problem does not happen on Wifi. Then it will find me perfectly. Tried a full restore, set up as new but no fix... Same result on 4.0.2 and 4.1GM This happening anyone else? My iPhone is perfect apart from that. Never drops calls and screen etc is fantastic. Happening anyone else???? Puzzling...or faulty?