T-Mobile just sent out invites to press for its big upcoming Uncarrier 7.0 event scheduled for September 10. That’s a day after Apple is set to announce its new iPhones and possibly other products on September 9, so it’s possible T-Mobile will dedicate at least some stage time to iPhone related announcements. Its tagline on the invite reads, “This time it’s personal,” but what exactly that means will be anyone’s guess until early next month.