Blackberry looks to win back users

Research In Motion (RIM), the maker of Blackberry phones, was once the leader in the global smartphone industry.

However, it has since lost a considerable amount of market share to rivals such as Apple and Samsung

In an attempt to win back its users, the firm is launching a new operating system, the Blackberry 10 as well as new phone models.

And as Michelle Fleury explains, this is a critical moment for the company.

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