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Submission + - Big Brother Chip (technologyreview.com)

Taco Cowboy writes: Just when you think things can't get any badder, here comes a chip that can pinpoint you, in-door and out

It can even tell others on which floor of a building you are located

It's the Broadcom 4752 chip

It takes signals from global navigation satellites, cell phone towers, and Wi-Fi hot spots, coupled with input from gyroscopes, accelerometers, step counters, and altimeters

The company calls abilities like this "ubiquitous navigation," and the idea is that it will enable a new kind of e-commerce predicated on the fact that shopkeepers will know the moment you walk by their front door, or when you are looking at a particular product, and can offer you coupons at that instant.

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Big Brother Chip

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A rock store eventually closed down; they were taking too much for granite.