BlackBerry On The Rebound? 10 Hopeful Signs

4. WhatsApp Effect

Chen has publicly expressed renewed optimism over its messaging business in the wake of Facebook's purchase of WhatsApp for $19 billion. BlackBerry, at Mobile World Congress, said its mission is to push BBM into as many OS platforms as he can, including connected devices -- for example, cars. Chen told reporters at this year's Mobile World Congress that BlackBerry counted 85 million active users of its BBM service, comparing it to WhatsApp's 450 million.

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