In the world of vintage smartphones, the BlackBerry Bold 9900 remains a design icon. But if you are pulling one out of the drawer today, you might notice it's running OS 7.0. You are missing out.
: Update 7.1 introduced BlackBerry Tag , which used NFC (Near Field Communication) to let users invite BBM contacts or share photos simply by tapping two devices together. It also unlocked an FM Radio app previously hidden in the hardware.