Primordial is the leader in off-road navigation software. Primordial's flagship product, Ground Guidance®, is patented software that plans a fast or concealed route through off-road terrain. Ground Guidance Desktop integrates with Falcon View to assist soldiers in planning fast and concealed routes. It runs on Microsoft Windows XP and Microsoft Windows Vista. Ground Guidance Handheld integrates with any Microsoft Windows Compact Edition (CE) or Microsoft Windows Mobile device to provide guidance along an off-road route. Primordial also offers a Ground Guidance SDK that enables developers to build applications that leverage Ground Guidance's on- and off-road routing capabilities. Instead of providing straight-line routes through off-road terrain as in the United States Army's Force XXI Battle Command - Brigade and Below (FBCB2) and Movement Tracking System (MTS), Ground Guidance suggests a best path based on operator preferences.