Brendan writes:
My wife and I had a trip planned to drive south from Illinois to Louisiana. The trip included a number of side-journeys, so I decided to upgrade my GPS from an older laptop-tied unit to a hand-held. After looking at various devices on the market, I decided on the DeLorme PN-20 GPS; it had similar features to most of the Garmin GPSMap units, but included full navigation and topographic maps of the United States.
