Which Laptop-Based GPS Navigation Should You Use?

Laptop-based navigation is for people who work mostly in their cars, like salespeople, and need to organize routes between dozens of clients stored in their Outlook address books.

These solutions, which typically consist of a USB receiver and software, seem compelling on paper because they tend to cost less than dedicated GPS units, and because they offer a much bigger display for glancing at maps. We tested out the latest options from DeLorme and Microsoft to find out if it makes sense to use your notebook as a copilot.