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His Roddick and Nadal impressions are the best.

The Economist writes about the geoweb, Socialight and offers some thoughts on augmented reality.

At the same time, the incorporation of satellite-positioning technology into mobile phones and cars could open the floodgates. When it is available, simply moving about one’s neighbourhood can then be tantamount to browsing and generating content without doing anything, as demonstrated by a company called Socialight. Its service lets mobile users attach notes to any location, to be read by others who come along later. Taken further, the result could end up being a sort of extrasensory information awareness, annotation and analysis capability in the real world. “When that happens”, says Mr Jones, “then the map is actually a little portal on to life itself.”