Does anyone know how frequently the AW polls for gps signals? Oh, and I've heard that if you have your cell phone with you, the AW doesn't use it's internal GPS, but the GPS of the cell phone, is this correct? I'd like to know which is more accurate, as a walk I did the other day through a park the GPS track had the appearance of perhaps once every 30 seconds to poll the position. The Garmin I have will do once a second, and it's pretty decent. Any Techno-geeks in here?