So you think the Real-time Traffic reports in your NAVI is cool? That's so old now. ;-) The new hotness is Weather and Social Networking on your NAVI. Honda will be releasing in Japan, the ability to receive updates every 10 minutes on weather conditions in your area or along your chosen route. If roads are flooded or closed from being iced over, it'll let you know. The service is called InterNavi Weather and is part of the new InterNavi Premium Club.
A subscription to the InterNavi Premium Club will also give you access to a Social Networking Service (SNS). Subscribers can enter their comments at various Points of Interest (POI), so people will know where the coolest places to hang out are or if some bar plays lame music. The possibilities can be endless here if they develop an open and flexible architecture.
It's only available in Japan right now, but so was the real-time traffic feature before it first became available on the new Acura RL. If and when it comes to the US, I sure hope they'll offer a way to sync your comments via a memory card. This way users can write their reviews on a PDA, notebook computer, etc. and won't be as inclined to be writing long reviews while driving!