Here is what I want to do. I would like to purchase an iPhone 4S, but I don't want the service for it. I want to use it more like an iPod Touch than an iPhone with calling/texting. I can just download TextFree with Voice for that stuff. I mainly want one for a better camera and Siri Now, I was planning on getting the Sim Free iPhone 4S off of the Apple website and getting a micro sim card off of eBay. I've read that you only need the sim card for activation/upgrading/restoring the iPhone. Is there anything else I should know about doing this? Thanks for any quick responces.