Unlike the iPhone 3G and 3GS, the iPod Touch does not have a GPS chip. However, several solutions are available or under development for the iPod Touch can benefit from the solution iPhone car navigation.
It has crossed a solution based cover which plugged his iPod TouchIs available at the moment solution via Bluetooth to the iPod Touch But it is restricted to iPod Touch jailbreak. Finally, the TomTom supportWhich has its own GPS chip could be offered in a version compatible V1 iPhone and iPod Touch was initially discussed a priori, but latest news seems negative side of this is.
So here a solution through a box GPS (PosiMotion G-Fi router) that connects to the iPod Touch via a wireless localAssociated software Navmii.