According to IDC, BlackBerry 10 is set to battle it out with Windows Phone 8 for the No. 3 smartphone operating system worldwide in 2013, behind Android and Apple's iOS. While its grip has slipped in North America, BlackBerry has maintained a strong presence in such far-flung places as Indonesia, Nigeria, South Africa, Mexico and some South American countries.

CNN: With BlackBerry 10, struggling phone maker eyes comeback