The Wall Street Journal has confirmed earlier rumors that Nokia’s upcoming X7 smartphone for AT&T has been cancelled. The Nokia X7, which has not yet been announced in any official capacity, would have been a unique option for AT&T subscribers. It features the latest version of Nokia’s Symbian operating system and four speakers that create a surround sound experience. According to The Journal’s sources, Nokia cancelled the U.S. launch of the device, which was scheduled to be announced ahead of Mobile World Congress next month, because AT&T was not going to provide the subsidies or marketing support the phone needed in order to succeed. Nokia still plans to launch the X7 in other markets and will likely unveil the smartphone next month.