I have an iPad 3rd Gen with AT&T. I do not have a data plan through AT&T and don't plan on buying one. I want to be able to use the iPad as a GPS when traveling through the US and then this summer when I am going to be in Europe. I tried the TomTom US/Canada app and it will not center on my location if I don't have wifi. I feel a bit cheated by either the app or the iPad....just not sure which yet. Figured with a >1GB download I would have had something similar to a stand-alone GPS. Is what I am trying to do unreasonable? Or am I missing something?