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.
4. WhatsApp Effect