Can iPhone's GPS work off-network?

[longshadows]

I've read a bunch of posts, but they all go off on downloading maps, the difference between A-GPS and GPS, etc. I'd just like a simple answer to what I hope is a simple question:

Can the GPS feature on the iPhone 3GS work when away from the AT&T network? (under any circumstances)

I don't need map access, just data coordinates. I travel in a lot in rural areas, where AT&T has no service whatsoever (much less 3G) and I need to note the GPS coordinates of points I visit. (I have a little App, "GeoQuick" that gives the lat/long, which is all I want.)

Is there any way to do this, when I'm not on the AT&T network?

Thanks...

 

[iFerd]

GPS worked fine for me in Europe last summer while data roaming was switched off. No new maps could be loaded of course, but the GPS data were collected. I know for sure because I loaded Google maps while on Wi-Fi, and I could follow my movements on those maps, so long as I didn't need to load new ones.

So it would work with maps that are loaded into memory, rather than needing to be loaded over the air. I also have a GPS tagging application for photographs, and that works fine too, even though you can't see where you are on a map while data is off.

 

[Oliver.m]

Yes GPS works fine without a network connection. You will just be unable to get any map data that is not already saved on the phone. It'll be fine for just getting coordinates though.

 

[Moi un Mouton]

The compass app will give you your co-ordinates, no data download needed.