BlackBerry Ltd is "very much alive, thank you," Interim Chief Executive John Chen affirmed in an open letter on Monday in which the smartphone maker committed itself to rebuilding as a niche player concentrating on the enterprise market. Chen took over as CEO a month ago after BlackBerry abandoned a plan to sell itself. "In short, reports of our death are greatly exaggerated." BlackBerry, once the market leader in on-the-go email, has suffered a drastic loss of market share to Apple Inc's iPhone and devices powered by Google Inc's Android software. "We know that BlackBerry devices are not for everyone.



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