I recently added XM w/Navtraffic to my Avic. Could someone tell me the history as far as how frequently cities and flow data are added? Is there a schedule somewhere about who is coming next. I live in a city that has just the incidents and wondered how quickly flow data might be added. The incidents are nice but I have seen the flow data in action and there is no comparison.

I would ask XM if its not listed here

http://xmradio.com/navtraffic/

I have NavTraffic and LOVE it. I work in the DC metro area and drive around the beltway daily. NavTraffic is a must. I think I may marry it...LOL

Just got it, hasn't saved me yet, and not sure it will becuase my route to work doesn't leave a lot of room for variaton (Have to go from VA to MD over the Wilson Bridge) that well, but its deffinatly cool to see on the map.