Where do you guys get them and whats the price?.
Also can you move the PDA from truck to car easyly?
thank you 
TomTom are the best!
and yes it is very easy moving the whole lot from car to waggon! in fact just as easy as maps!
Remember you may need an invertor depending on what waggon you have and the output!!
tomtom is very good but also have look at copilot5 as the maps are better and more up to date
tomtom is easier to put points of interest on hand is it easier for to add third party software for points of interest warning such as safety (sorry that should read SPEED) cameras navigon can be a pain to get used to and smartst version 2 is ok too
Tom Tom are very good but if you need cross border routing then they don’t do that so something like Co-Pilot would be a better bet.