Just to reiterate - GPS is worth nothing when you call a 911 center. I was actually in the 911 center for Bucks County, PA recently, and while they have really neat technology, the incoming 911 call handler does not auto-magically get a GPS position with a whizzy Google Map of the phone position.

Also, I'd like to point out that GPS is NOT at all a reliable tool for urban areas and, as we learned from the initial poster's statements, it's not even possible at times to get the coordinates.

Then there's the matter of format & datum.

46 45.456 72 22.32 is not at all the same as
46 45' 06" 72 22' 32"

when you're on the ground...