By Euan Rocha TORONTO (Reuters) - BlackBerry Ltd plans to launch a new tool for business and government customers to manage mobile devices on their networks, part of a drive by the one-time smartphone pioneer to focus on its profitable enterprise or services business. The company said on Tuesday it would launch BlackBerry Enterprise Service 12, or BES12, to unify its existing platforms and provide clients with increased flexibility and security. Following a decline in popularity of its once iconic devices, BlackBerry is striving to reinvent itself under new Chief Executive John Chen. It hopes that focusing on its enterprise business, which has long been a core strength, will help revive its fortunes, as its new line of BlackBerry 10 devices have failed to win back market share from iPhone and Android devices.



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