Ok, I currently live in Costa Rica (I'm a US citizen btw) where the nationwide cellular network is ICE. This Christmas, I will be going to the US for 2 weeks to meet up and spend time with relatives. I plan on buying an unlocked iPhone 4S 16GB from Apple. And I would like to use it while I'm in the US. The only problem is how would I use it? How would I activate and use it like normal (minus phone) without a SIM card from ICE? Also, there would be no wi-fi in the house that I'll be staying at. How would I activate and use an iPhone 4S without a SIM or wi-fi? Other stuff: I will be bringing my laptop, so i there's any software like hacktivation/jailbreaking software i could bring with me, ill use it. I can goto a local library for my internet stuff. But not often. Can i go to an Apple store to explain my situation and have them activate it for me? Ive never owned a cellphone, yet alone an iPhone so i dont know how all this stuff works.