From a piece on arstechnica.com — This trash can is stalking you (!!!) –
During a one-week period in June, just 12 cans, or about 10 percent of the company’s fleet, tracked more than 4 million devices and allowed company marketers to map the “footfall” of their owners within a 4-minute walking distance to various stores.
Source: http://electricalcontractor.com/?p=10689
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