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Location, Location
Mobile phones and other devices are helping all sorts of useful objects 'know' where they are - and tell everybody else about it. Peter Day hears from the people building companies out of this dramatic new sensing ability.
Last on
Sun 17 May 2009
21:30
大象传媒 Radio 4
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- Thu 14 May 2009 20:30大象传媒 Radio 4
- Sun 17 May 2009 21:30大象传媒 Radio 4
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