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Page last updated at 00:21 GMT, Friday, 16 November 2012

New Blackberry's upgraded with BBM and free voice calls plus other tech news

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RIM has confirmed its new mobile operating system will launch at the end of January. Blackberry 10 will have an upgraded Blackberry Messenger app including free voice calls over wifi.

Spencer Kelly reports on this and other stories including departure of Windows boss Steven Sinofsky from Microsoft.

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