A new study of satellite tracking technology estimates that US companies are tracking 3.6 million vehicles, a number that's due to rise to 6.5 million by 2012. The advantages of tracking your vehicle fleet are pretty well known, but while GPS kit has become very cheap, the bandwidth for getting data back to head office, in real time, is still relatively expensive. That's now changing as more bandwidth and coverage becomes available without resorting to expensive satellite links: which is why the report expects to see such rapid growth.

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