Its project name was Javelin. The Curve 8900 is a quad-band GSM/EDGE phone with Wi-Fi and GPS. In the BlackBerry model lineup, the device is a replacement for the older BlackBerry Curve 8300 and is an upgrade in almost all aspects and features. The striking 480x360-pixel screen offers up crisp on-the-go video, images, text, maps and more. The official release on T-Mobile USA was on February 11, 2009.