I had to look twice to believe the MULTIZ321 hadn't already posted this but, if you are thinking about purchasing a TomTom GPS you might read this article. I'm not sure EXACTLY what it is saying so you'll have to figure it out for yourself:
http://www.reuters.com/article/2011/10/24/us-tomtom-results-idUSTRE79N15520111024
http://www.reuters.com/article/2011/10/24/us-tomtom-results-idUSTRE79N15520111024