As any BlackBerry user will know, one of the best features about RIM’s device – barring the stellar keyboard – is BlackBerry Messenger, which allows people to communicate with other BlackBerry users for free, anytime, anywhere through the BlackBerry Enterprise Server.
Indeed, many BlackBerry users stick with the device purely because no other phone or OS has offered any kind of viable replacement for BBM, especially while traveling abroad where data charges are expensive, but BBM remains free and utterly usable.
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