BlackBerry invests in corporate market

The company acquired Movirtu, a British start-up of mobile device technology that allows the user to have personal and corporate numbers on a single mobile device, with separate billing for use of voice, data and messages in each number. That way it administrators, for example, can restrict calls and e-mails to a corporate number after a certain time, without blocking emails or personal calls to the same device. The terms of the transaction were not disclosed.