IMO, we will most likely not see the X carried by T Mobile. I believe its because the two companies are headed in different directions. Motorola wants to cut the middleman carrier out and sell phones direct to customers. Legare is pushing T Mobile towards a business model in which T Mobile is a phone retailer that happens to provide cell service to the phones it sells. Those two business models are diametrically opposed.
I know this opinion will be unpoplular to the T Mobile fans, but that's the lay of the land. Legare has been wildly creative at finding ways to lock customers into long term deals without "contracts". Payment plans and leases are examples. By baking Wifi calling into firmware as opposed to a standalone app, Legare is providing incentive to buy phones directly from him. He desperately wants his customers to buy phones from T Mobile because that's where his true profits are. Please don't take this a criticism of Legare. He's doing what he thinks is right for T Mobile and I for one don't blame him.. A lot of his initiatives are good for T Mobile AND the customer, but not all. And he's doing a helluva job based on the latest earnings. Legare doesn't like you buying directly from Motorola because its costing him profit. Google is to big and strong for Legare to ignore the Nexus line. Lenovo/Motorola doesn't yet have that kind of moxie.
Motorola is fighting that business model with the Pure. Will it succeed? Time will tell. Unless Lenovo is prepared to invest heavily in Motorola (particularly marketing an area where Google didn't seem to give a [language removed by mod]) Motorola is fighting an uphill battle.