by Christopher Mims Technology Review
With a tiny-enough GPS sensor, it’s possible to track the location of anything from your lost keys to a runaway pet. That’s because the world’s smallest GPS receiver is now smaller than a penny and weighs only 0.3 grams. But that’s just the chip — what about all the electronics required to make it truly useful, like a system for remotely downloading the data it has logged?
http://www.technologyreview.com/blog/mimssbits/27134/?p1=blogs
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