[nootrak4]

Well I hada stand alone GPS Unit (TomTom) and now i use the GN, before the 2.2 upgrade it did a really good job at re-routing you. now it does like every other GPS unit it try to put you back in the original route instead of just working with your current direction. There are things missing in the GN.

1. It does not track you speed.
2. It does not display the road speed limit.
3. It does not warn you if you want to take a toll route or not.
4. It does not ask if you want to take a shorter route or fast route or avoid Highways.
5. It does not display how many total miles left to go.
6. It does not give you and estimate of what time you will get there (mean if is 11:10am and the trip will take 37 mins, it will not tell you that you will arrive at 11:47)

Keep in mind all this features i came dependent on while using my TTN.

From my experiance it seem like the GN will download all it need for the current route. if you deviate from the route then it will need data to re-route you. The SN is really weak. with the SN you really need to have Data connection all the way has this Nav only downloads parts and it keep updating as you go along.