That article is 2 years old.... Just to clarify, the iPhone's built-in Maps application gives you free turn-by-turn driving/walking/bus-subway directions and full GPS functionality. It just doesn't speak the directions aloud while you're driving/walking/riding. For that, you can download the free MapQuest 4 Mobile app which has spoken turn-by-turn directions and live traffic updates. It's completely free, and it's one of the better reviewed iOS apps for driving directions. Also, the TomTom app is $50-60 these days, not $100.