GPS and ipad

Here's a good place to start: iPad- Understanding Location Services.

Last week, I took a very long trip, from New Orleans to West Virginia (and back), and used the standard maps application the entire way. Even when I didn't have any "E" or "3G" service, it was still able to keep track of my location. The only problem I found, was that GOOGLE was not always accurate with locations of businesses.. Apple or AT&T can't help that.

Good luck. Feel free to ask for any other details.

I was not able to access and use Maps or later Motion X Drive app (excellent) unless I had Internet access. Wi-Fi is out if one is driving so that left 3G. However, since I'm on the limited plan (250) I did not use it for long distance because I wasn't able to determine if I'd use up all of my allotment.

Originally I had decided to get a 3G rather than a Wi-Fi only because I wanted to have insurance that I could reach the Internet if needed and Wi-Fi was not available to me. However, after having my Garmin die on me (since replaced) I found that the 3G was my lifeline and saved me twice from getting lost in unfamiliar surroundings. If asked now why I would get a 3G vs a Wi-Fi only it would now be because of the GPS.

I use the TomTom for iPhone app. It is a large app (1.5GB), but has the advantage of not needing any external connection to the Internet, as all map data is contained in the app. It works great.