GPS tracking for photos taken with iPhone is a great feature. It's wonderful to return from a trip and be able to see exactly where you were when each photo was taken. But I think most people would agree that it's at least somewhat troubling to have photos taken at your home tagged as well. So why doesn't Apple simply add a feature under Privacy that disables GPS tagging only for photos taken at your home? The iPhone is definitely capable of GPS fencing so it should be simple to program the feature. That way, you don't have to worry about posting photos taken at your house and potentially leading bad guys right to your front door. Frankly, I can't believe they haven't implemented something like that already.