Originally Posted by
sstorkel
The nice thing about a GPS unit is that the maps are pre-loaded. Often when I'm lost and want to check my phone, I'm in an area where cell coverage is bad and it's impossible to download map data or it takes so long that you wouldn't want to wait for the process to complete...
My phone has a fully functional GPS without regard to cell service. So if it doesn't work my Garmin Edge wouldn't either. But I can understand why this would be a problem if your phone uses towers to pin point your location.