We haven't used the 'Exit Now' but can tell you we've used "Next Exit' for two years now, probably around 15,000 miles, and it has always been accurate as to what's available.
I have the mobile google app on my blackberry. I love it! I cant even imagine how I got by without it. Not only do you get the GPS maps but since your connected to the net you can do local to national searches. I really love it.
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