Multiple sources have informed BGR that AT&T has blacked out vacation days for the second half of September in preparation for the iPhone 5SĀ*launch date. This has taken place every single year starting with the first iPhone launch, and it limits AT&T employee vacations and time off. We were also told that AT&T will not be launching any other high-profile devices during the second half of September, again confirming that this time period is for the upcoming iPhones. An earlier report noted that T-Mobile has issued a vacation blackout for September 20th through the 22nd, and coupled with an almost-confirmed September 10th announcement event, it sure looks like September 20th is a go for launch in the U.S. and other{br}{br}View the Entire Article{br}