I have seen a couple of threads on the Nav's. Basically, everyone how has it loves it and everyone that doesn’t says they could not justify it.... My question is this.. What are all the functions that it does (besides the actual GPS mapping)? i.e. what does the trip computer keep track of?

I looked in Kelly’s blue book and found that the Nav. on all Acura's loose 75% off its value in the first year. So this thing had better be cool to eat $1,500 in one year!!