I have an iPhone 4S, Verizon, and an iPad 3 with LTE (but have only used wi-fi so far) plus a MBP. I'm going to be on vacation in York, England this summer and was trying to figure out which provider would work best. There's Orange, O2, and Three, but I have no idea which might work best. I'm just looking for minimal phone usage plus internet for e-mail and surfing. Not sure if it would be better to find a way to tether the iPhone to iPad or MBP or get 2 sims, 1 for iPhone and 1 for iPad. I've had the phone more than a year so it won't be a problem to get Verizon to unlock for international sim use. The place we are planning to stay has no wi-fi (rats rats rats). Anyone have any suggestions?