Navigation junkies have been pining for Navigon’s latest MobileNavigator application ever since our sneak preview at CTIA, but that wait is now over — at least for iPhone constituents. To mark its arrival, the app was re-branded as Navigon 2.0, and yes, it’s a free upgrade for current users. Most notably, the software now enables individuals to selectively load maps into their iPhone on a state-by-state basis — thereby creating extra headroom for more important uses. Additionally, Navigon fans will also discover a completely re-designed user interface along with an in-app purchase function that delivers quarterly map updates. Now through November 30th, new users may purchase Navigon 2.0 for $20 off the normal price of $49.99 for the United States or Canada, and $59.99 for all of North America.