Garmin, due to better than originally expected sales performance in the North American market since the Black Friday weekend, estimates that its 2008 total sales volume of GPS PNDs will increase by 50% from 2007 to 18 million units, according to the company's Asia Pacific marketing director Tony An. Garmin's GPS PND sales volumes in the Asia Pacific market in 2008 will also grow by at least 50%, An indicated.

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