I see from the tech specs on the apple site that the 4GLTE model of the new iPad has "Assisted GPS". What does that really do? Are all the location services that I currently have on my iPhone 4S, like knowing where I am on a Google Map, and for things like "Find My iPad" still fully functional if my iPad has a Wifi connection??? I guess what I'm asking is does the iPad still use some kind of global positioning locator if one doesn't buy the 4G model, or is it simply showing you your location based on the wifi hotspot location? Is one more accurate than the other for your iPad's actual location??? I doubt very much I'll be needing 4G service and think the wifi model might work just fine for me- but don't want to limit the ability to use features.