AT&T did a tremendous job in updating its full Windows Phone lineup to the platform’s
latest iteration, 8.1, and now it’s T-Mobile’s turn to show it cares about its clients. The Cortana-incorporating software package recently went out over to air to Lumia 925’s T-Mo users, with
the 521 apparently next in line.
And by that, we don’t mean next in line sometime in the imprecise future….