I’ve been using the AT&T Navigator app for iPhone for a couple of months now. This is a free app, but it requires a $10/month subscription from AT&T (or $70 for an annual subscription). I’m not going to belabor the GPS functions too much in this review: it’s almost the year 2010, and the global positioning system has been used to provide turn-by-turn directions for long enough now that any GPS device or application being reviewed should do that basic job. Instead, I’m going to examine how useful a GPS function is on your mobile phone, talk about some of ...

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