The first technologies have been unveiled at the 2012 International Consumer Electronics Show (CES). Waterproof smartphone coatings, diet-aiding armbands and a social network that warns drivers of the latest police speed-traps were all on show. Microsoft’s chief executive Steve Ballmer will present his company’s last keynote at the three-day event. The firm’s pullout has led several attendees to speculate if the trade show will be a smaller event in future.
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