The internet search giant Google has launched its own brand of mobile phone as part of a strategy to to remain a key player as the web goes mobile.
Google hopes its much anticipated Nexus One phone can take on Apple's iPhone over time - and help shore up the company's dominance in internet advertising.
The BBC's Maggie Shiels reports from Silicon Valley:
Newshour's Robin Lustig asked William Webb, an expert in mobile technology at the Royal Academy of Engineering, whether he thought people would abandon their home computers for mobile phones.
First broadcast 5 January 2010
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