Originally Posted by ScottC
It works in pretty much all major metro areas, and is about as realtime as possibly available, FWIW the source of the TomTom information is the same as the Garmin if I am not mistaken so both will show the same.
TomTom is free at the moment till they get a billing system working. It shows regular traffic jams, construction, and all kinds of other road hazards.
They have a list of all their coverage areas here:
http://www.tomtom.com/plus/service.php?ID=3&SID=4
I see where that link says coverage in the US is not currently available, but then it shows a list of US cities just below that statement. I'm interested in hearing anyone's experience with a US based system, in particular those offered via satellite radio?