Mapping a Wireless Trend

GPS standbys Garmin and TomTom may need to change course if the popularity of in-phone navigation systems from the likes of TeleNav continues to grow

Greg Hughes can't afford to get lost. Hughes, 40, is a computer security consultant who logged about 150,000 miles flying to clients last year, and he typically rents a car to get from place to place once he lands. To find his way around, Hughes used to rely on dashboard-mounted navigation devices. But lately, he has ditched standalone navigators in favor of the mapping tools embedded right in his BlackBerry (RIM). "It's more convenient to have everything built into a single device," says Hughes, who's based in Portland, Ore. "I can use it when I travel for work or for personal travel. It makes the BlackBerry a lot more useful."

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