Map Accuracy
Map Companion maps are built using a proprietary system that takes complex source map data
obtained from other vendors and converts it into databases compatible with the Palm™ Operating
System. Therefore, the maps are only as accurate as the original source we purchased or licensed,
and are not meant to be used for high-precision measurement or navigation applications requiring
highly accurate measurements of the earth
’
s surface.
The maximum positional accuracy error claimed by our current source data provider is approximately
150 feet but in practice we have found the errors to be on the average of about 20 feet.
As much as we would like to, we cannot guarantee that all existing roads are present in the map data
because our sources do not guarantee it to us. Maps vary in age, and older cities like New York, for
example, are unlikely to have any missing streets at all. Newer, fast-growing cities are more likely to
be lacking some streets.
