The battery life and safety issues will perhaps combine to eventually push mobile equipment's inroads into the vehicle dashtop. However, satellite-based GPS navigation and satellite radio may already hit a snag because of their part-time usage and technological hierarchy. Put differently, people want more functions than GPS navigation and satellite radios. The trend indicates an ongoing convergence into all-in-one dashtop mobile devices incorporating GPS navigators, satellite radios, MP3 players, mobile TV, mobile Internet, MVDER (vehicle black box), driving safety monitors, smartphones and even video games.