tangoGPS is described as 'tangogps is an easy to use, fast and lightweight mapping application for use with or without GPS. It runs on any Linux platform from the desktop over eeePC down to phones like the Openmoko Neo' and is an app in the Travel & Location category. There are three alternatives to tangoGPS for Linux, Mac, Windows, BSD and GTK+. The best alternative is Roadnav, which is both free and Open Source. Other great apps like tangoGPS are FoxtrotGPS (Free, Open Source) and GpsDrive (Free, Open Source).
Roadnav is an open source street navigation solution capable of running on a variety of operating systems. It can obtain your position from a GPS unit, plot a map of your area, and provide directions to locations in the USA.
FoxtrotGPS is a GTK+ based mapping and GPS application. It’s typically used to show a moving map showing your position in real time. It’s useful as a navigation tool, and as a track logging (e.g. for OpenStreetMap) and trip planning tool.
GpsDrive is a car (bike, ship, plane) navigation system. GpsDrive displays your position provided from your GPS receiver on a zoomable map. The maps are autoselected for best resolution depending of your position and can be downloaded from the Internet.