Palm has updated their site to indicate that their GPS kit now comes with Navigator 6. Listed program improvements include:
Better coverage with the latest Tele Atlas maps with coast-to-coast, cross boarder, door-to-door navigation between USA and Canada
Arrival time-based planning so you can calculate when you'll reach your destination-even factor in delays
Speed limit information for the roads you're traveling so you'll always know the limit, even between signs
1GB memory card is pre-loaded with maps of the U.S. and Canada-no synching or downloading required
Improved point-of-interest searches help you find nearby restaurants, gas stations along your route, attractions in the town you'd like to visit, and more, with greater speed and ease
Safety Lock lets you view less menu options while driving for better safety
The Tomtom site is still showing Navigator 5.