[youtube]http://www.youtube.com/watch?v=SbvMt0diVFU[/youtube]
In case you did not know, iPad/iPad 2 Wi-Fi Only do not have integrated GPS, so you cannot make an exact location of your position on the map using such a tablet. The 3G version in exchange also has integrated GPS plus the AGPS function which uses an internet connection to help the GPS to make a location as correct as possible. Apparently iPad 2 Wi-Fi (I assume it also works on iPad) can locate you on the map using the Maps application and the AGPS function when you are connected to a Wi-Fi network made by an iPhone 4 using the Personal HotSpot function. As you can see in the clip above, the iPad tablet is connected to the iPhone, which transmits location information directly to the iPad's Maps application.
As we got closer, I decided to get some directions to make sure we were on track. I launched the iPads maps app, expecting to navigate the old fashioned way without GPS assistance — knowing full well that GPS only comes in the 3G iPad models. Imagine my surprise when my iPad pinpointed exactly where we were on the road.
It is clear I am being fed GPS information from the phone, at what appears to be an interval of once a minute or so between refreshes (likely they didn't do real time updating so as to go easy on the phone's battery).
As you already know on iPad Wi-Fi you can use an internet connection and the AGPS function to make an approximate location on the map, but that location is made depending on the HotSpot you use, so it will rarely show you on the map the correct position. The one who made the clip above used an iPhone and tablet to have retrieved information about the phone's position on the map through AGPS, and that's why we have such a correct location. In conclusion, you can use iPad Wi-Fi and GPS location applications, but the correct position will only be displayed if you connect the iPad tablet to a Wi-Fi network made by an iPhone.
