Hmmm, an old thread - not sure how/why I stumbled into it this time, other than that I have a continued interest in finding usable routes for long('ish) trailers.
Alternative products have appeared in the interim, prices continue to drop, memory sizes increase, more POIs get bundled (more for the benefit of the franchises than the travelers).
My reading at this time is that the truck routing providers have moved towards the consumer (car) space and will continue to do so.
Also that laptops are becoming less and less favored as the trend moves to cell phones & what we used to call PDAs (i-PAD, etc.).
The trend towards self contained units as reviewed here will probably continue;
http://www.dieselboss.com/truck_gps_review_features.htm

