I am a little confused with the Tom Tom when it says that it has a bar, threat, and tech display. Does that mean that the tom tom is a radar detector also. I am assuming so, but uncertain. I am interested in buying this unit for my job since I travel to different stores( i.e. Walmart, Target, Kmart,....) in areas that I am uncertain with. I couldn't find any recent discussions on this so I thought I would start a new updated one. Also, if you have handled this unit before what are the +'s and -'s. And have they changed since the unit was released. Any and all info will be greatly appreciated.