The future iPhone 2.1 software update will bring improvements to the GPS functions. Specifically, the iPhone will not only know where you are, but in which direction you are going and how fast you are moving. This is being interpreted by many people as the coming of turn-by-turn GPS. Proper turn-by-turn GPS would be a huge blow for existing satnav manufacturers, unless of course Apple doesn’t build the functionality into the Maps application and instead allows third parties to fill the gap.
Thanks for sharing that! Nice post. I just glanced through it.
http://www.gps-systems.co.cc