Bought the iPhone 6S+ this morning via the Apple Upgrade Program. Seems from browsing the forums that it is indeed unlocked. Yes? Can anyone confirm the AT&T version will indeed work on Verizon? I put in my IMEI on verizon.com and it says it's incompatible (thinking about switching)...however we now know that the AT&T version (A1634) has CDMA radios in it. Has anyone tried putting a Verizon SIM into A1634 (AT&T)? Thanks!