I am completely newbie to this device. Planning to buy one very soon. I have a question.

My wife wants something to play music for her. She do not listen much but some times. So I thought of buying an iPod for her birthday untill i saw this. My idea is we can use this as GPS (of course we need to buy a blue tooth GPS satellite receiver). My understanding is, after installing the maps software, first we need to have internet connection and when we give the origin and destination it downloads the map into memory which can be used while driving.

Is that mean, we can not use this GPS thing if we want to go to another destination after disconnecting from internet. And even if we miss the road then it can not help use by re-calculating the another direction. Am I correct?

Another question is, once we buy a GPS satellite receiver do we need to pay any monthly fee for receiver?