This limited-time offer is available in-store and online, nationwide. For more information, check out If you do take advantage of the deal, the company adds that when you put T-Mobile ONE on that new iPhone you’ll get benefits like unlimited talk, text and data, along with benefits like an hour of Gogo inflight Wi-Fi, Netflix included on family plans — and up to $1,550 worth of free added value per line every year, according to industry analysts.