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Page last updated at 11:01 GMT, Friday, 2 October 2009 12:01 UK

Wind-up mobile targets developing regions

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Spencer Kelly looks at a mobile phone with an integrated wind-up charger which could be useful for people without access to a power supply. Wind-up chargers which plug in to an electronic device are quite common but this is a first, and its developers think it could find a market in developing regions like India and Africa.

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