I have an unlocked Verizon 4S and a 3rd Generation iPad Verizon version. Ideally I would love to have data service throughout my entire trip, but not required. I figured i'd ask this wonderful community here, at the very least in preparing myself so as to not hear ridiculous offers where I may not know i'm being ripped off. Of course, no contracts of any sort; just SIM up and have data. I'd also imagine I may need either 3 separate SIM cards, one for each country or 2 if a single SIM can be used for both Rome & Paris. I haven't a clue and figured it was worth a shot asking. Any help is appreciated. My iOS devices are ready to come with me on the trip and I don't wanna miss a FaceTime call or Google Maps, etc. Calls abroad aren't the most important, data is where it's at for me, , baby.