T-Mobile customers may have to sit tight for a little while longer if they're planning to pick up a Nokia Lumia 925 or Sony Xperia Z. TmoNews has reportedly obtained a roadmap from the UnCarrier that has the two smartphones launching on July 17th alongside an unidentified (though likely budget-oriented) handset. While pricing isn't mentioned for the Xperia Z, the Lumia 925 is expected to cost $100 down with a $579 full price. The apparent leak gives us a date to mark on our calendars, although we won't base our lives around it -- carriers tend to change schedules at the last minute, after all.