I currently own a Verizon iPhone 6 Plus. I do plan on purchasing/pre-ordering the iPhone (2015 edition) unlocked with no carrier plan. Question #1a. When purchasing/pre-ordering the unlocked T-Mobile iPhone (2015), does that purchase require a T-Mobile account in order to purchase? (Similar to AT&T, Verizon and Sprint asking to either replace current iPhone or New line?) Question #1b. Will I be able to insert my current Verizon iPhone's nano sim into the unlocked T-Mobile and work fully on Verizon's 4G LTE network? Question #2. Apple also currently offers a Sim free option. Has it been confirmed that the Sim free iPhone will work fully on Verizon's 4G LTE network? Question #3. My current Verizon iPhone 6 Plus is still under contract until 2016. Would I be able to purchase/pre-order the iphone (2015) unlocked on Verizon Wireless's website with no issue other then paying $1,000?