1. Will I need a sim card to activate the Ipad? For example, If I restore my Iphone and I do not have an active sim card in there, the phone will not work, it will keep me in the registering screen until I pop in my sim card to activate it, and then I can use it. Is this the same for Ipads? 2. If I do a 2 year contract, and I decide I want to cancel after that is up, and i do so for 6 months for example. When I activate it again, will it charge me an activation fee of $40 everytime I do that?