Basically with this new $15 plan you're leasing the phone for 18months. So you have to pay off your old iPhone and trade it in then you get the new phone. And with this new $15 shyt you can swap your phone for something new like 3 times a year. Not sure if you can do it like this promo. But peep my previous post about this new lease shyt vs buying.So essentially, if I've paid off my iphone 6, I could get the i7 w/o buying it and just pay 15 bucks a month for the jump deal? I'm not quite clear on how this all works.