My favorite iPhone/iPod touch turn-by-turn GPS navigation App just got better. The 1.6 update brings iOS 4 compatibility, which of course the big news here is that it continues to work in the background if you receive a call. That's right! You'll continue to receive voice directions if another App is running in the foreground. Also once you end your call the App will take about 1 second to update the screen with your current position. That's not all. Navigon also updated the maps to the latest versions and they've added weather info for both your destination and while you're in route as well as available parking at your destination.
I took it for a test spin
Over the weekend I took the New updated Navigon App for a test drive and without even having to plan ahead, I received a call while navigating. I took the call over the hands-free bluetooth in my car and the voice prompts continued. Once I hung up from the call I was immediately returned to the app. If you want to still see the display while you're driving you can just use fast app switching in iOS 4 to go right back to Navigon and continue talking.
My setup above is:
FAQ: Yes, all of the Maps are built-in to the App. No, you don't need a data connection while you're using it (except for the weather, parking and Google POI search). No it does't require your data plan (except for the 3 things I just mentioned). No it doesn't require a Car Kit unless you're using an iPod touch, which doesn't have a GPS (the car kit does). No, there are no monthly fees. You buy the App and you're done.
The competition between all of these apps has been great and as result we (the consumers) just keep winning.