So I decided to use my new iPad as a gps and I love it. I have a pioneer Avic Z2 in dash gps unit but it's old. Even with the map updates it doesn't do the things I would love to do that I can do with the iPad.
I have a new iPad wifi only so I needed to do a few things to get the gps working and it does work well.
I purchases navigon because of the real time traffic notification and voice guidance.
I also had to purchase a blue tooth enabled gps I chose the tomtom mkii because it was 12 bucks off eBay with a car charger.
I had to jailbreak my iPad in order to install BTstack GPS so I can pair the external gps.
There is another Bluetooth gps that u can buy and don't have to jailbreak on amazons web site but it was over a 100 bucks.
I can tell you it's great and while navigon gets me where I need to go sometimes I have to pull up google maps in satellite view to actually see where say a baseball field is if navigon doesn't quite get me there.
I also tether my iPad and iPhone so I can get google map to work and get my exact location.
I use a bracket I got from amazon for the iPad to hold in my cup holder and a charger from my lighter.
I hope there's truly a 7 inch iPad coming out and has the gps chip built in like the 3G models cause I will no doubt get that as the 10 inch is a bit large in my truck.
I should have bought an iPad with the gps chip built in so I didn't need an external gps.
I love it and if the 7inch has my needs then I'll build an in dash setup for it.
Just thought I would share an experience I use my iPad for, and no I don't really look at it while I'm driving except a quick glance for guidance.