While this system seems fine for actually drawing the lines on the screen, a map is far more than just a network of lines. If all it took to draw a map was put lines down on a grid, map databases would be far less expensive. An auto-drawn map cannot include information like speed limits, restrictions (such as one-way), Points of Interest, road names, block numbers (or address locations), etc. While this new setup is far superior to the existing GPS traffic services (which universally suck), I don't think NavTeq and TeleAtlas are exactly quivering in fear.