Last Updated: Dec 01,2010
depends on the navigation program I guess?! Location, Navigon, Route66, Google Maps, My tracks?! Don't really know if i'm wrong, but it sounds reasonable
Co-pilot much better for me than any of the stock stuff on DHD, which was dire when i tried in London last week.
iPhone was always pretty accurate.
DHD and Navigon with the new NAVIGON Reality Scanner in Walking mode
EDIT: I mean walking in the city.
For hiking, there are of course special apps.
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