America is planning to improve its satellite-navigation system further: next year, it will start launching a second generation of GPS satellites, which will offer greater accuracy for civilian users and, for military purposes, greater protection against the signal being jammed by an enemy.

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The team is planning all sorts of other capabilities for the tech, including navigation systems -- "Power lines are like highways in the sky, " says one of the researchers -- and auxiliary surveillance systems that power up when jacked in.

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Huaqi, a Beijing manufacturer of handheld devices, is planning to build inexpensive, user-friendly portable media players and navigation devices.

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Vicki Poponi, assistant vice president for product planning at Honda's U.S. marketing arm, says it is true that Bluetooth and a navigation system are only available on the most expensive Civics.

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