I discovered earlier this morning that my brand new iPhone 6+ is unlocked. I'm on Sprint. Now I'm deciding what I want to do because I'm in a lease with Sprint. Assuming that my wife's iPhone 6 is also unlocked (I have not tested yet) and assuming that T-Mobile's deal to pay your ETF and payments deal is still valid I'm curious about the following. The deal says I have to hand over phones. Some light investigation reveals that you can give T-Mobile any phone and that if you buy a cheapie phone from them you can swap the SIM from that phone to the phone you want to BYOD. Is that still a loophole? Or has T-Mobile started to demand that the phone you must give them be your currently activated phone? My thought is to give them my wife's iPhone 5 and my iPhone 5, buy cheapie phones and then put the SIMs in my wife's iPhone 6 and my iPhone 6+ (and then probably sell the cheapie phones). Will this work?