Kinda of a niche situation but I made a reservation last night via the iPhone Upgrade Program for a 7 Plus with AT&T service. I wanted to know if it was possible to get the Verizon/Sprint model when I go to pick it up since that device will be unlocked and will work with all carriers (both GSM & CDMA) whereas the standard AT&T/T-Mobile model will only work with GSM networks. Anyone know if this is possible?