So when TT offers it's own traffic service for NA, your understanding is it too will only be for the top 50 (or so) metro areas? If so, why do it at all? That wouldn't be any better than Irnrix, TrafficCast, Navteq, Airsage or anyone else. Without more widely available reporting, that would not be my definition of HD traffic the way I see it, but I guess they can call it whatever they want.
For an effective US traffic reporting system for our pnd's, I think it's essential that all primary travel roads include flow and incident reports, not just the big cities. Yeah, it's nice to know there's a fender-bender slowing down traffic approaching 295 in Boston. But what about the accident on Cypress Gardens Blvd in my city of 60,000, adding 15 minutes to 2000+ commuters morning drive. Or the roadworks that completely close Recker Highway, a local feeder route, to thru traffic for 3 days in a row at a RR crossing upgrade and affecting thousands of drivers in a metro area of over 1 million (not exactly small town America). Covering 50% of the population but 10% or less of the highway miles just doesn't appeal to me as a quality traffic service. Certainly not the "HD-Traffic" I envision, nor that TomTom would have us believe.
Sorry for the slightly off-topic rant, but I'm becoming increasingly jaded by the rosy pictures offered by traffic reporting services accompanied by their less than stellar coverage. TT's IQR (and Navteq's Traffic Patterns for that matter) really do offer benefits for all drivers. No existing or announced traffic service available to our pnd's can say the same with a straight face.