I didn't notice if, on the new features of Streets and Trips 2010 there is a way to pick certain roads and highways based on height like big rigs, motorhomes, etc. If not, I'd sure like to see this feature added.
Also, I'd like Propane providers to be included in the base POI's included with S&T. The information can be obtained by searching with Bing on that mapping system, so it seems like they already have the source for this.