Microsoft's head of mobile Andy Lees
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Microsoft confident of Windows Phone growth

Microsoft's head of mobile, Andy Lees, said he was confident that Windows Phone 7 will catch-up with its competitor's popularity.

The operating system received a boost from the decision by Nokia to use the software on its smartphones.

Mr Lees told the BBC's Rory Cellan-Jones that compatibility with Microsoft's Xbox and Internet Explorer web browsing software will give their phones an advantage.

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