Among navigation gadgets that have the potential to make Santa’s list, the Garmin Nuvi 3790T is among the stars of the lot for its 3D maps and glossy screen, its ability to “figure out” speed limits in a jiffy, and other features such as giving you the elevation of the road you’re on. Even more, now with its improved two-way talk interface, users can give their Nuvi a name for more personalized service. Say its name and it is likely to pay more attention. Ask it to find the nearest favorite chain restaurant and it will obey. Beyond the cute factor, reviewers love the thin, light and sleek design. It functions well as a pedestrian navigator and is generally an impressive improvement on previous models of the same thing. But if you’re looking for a new voice, well, it’s the same person doing all your recalculating. But before committing to such a pricy unit just for navigation, it’s worth noting that there’s an app – or two or three or 50, for that. Whether it’s the iPhone, iPad or Android phone, tens of navigation apps are ready to guide you. Mapquest 4 mobile isn’t the same as Exxon Mobil Fuel Finder but they both give directions. Trapster shows speed traps and speed cameras. In an airport or a mall Point Inside shows you the way to deals and meals and more. A Beat the Traffic app shows live traffic cameras and traffic conditions, whether you’re in Minneapolis, Toronto or Chattanooga. Then there’s Trailhead by North Face and … well, so many apps. But wait, there’s Breadcrumbs. This service is the GPS version of the family vacation slideshow, where GPS tracks are integrated with photos and anecdotes from a trip, to share on Facebook. And even more, GPS goggles for skiers and snowboarders.