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Top 5 free iPhone automotive apps

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July 23, 2009 10:16 AM PDT

By: Wayne Cunningham

1. Trapster

Pros: Uses iPhone GPS to determine proximity to speed traps, speed cameras, and red light cameras; audible warnings even when iPhone locks itself; users can easily report speed traps.

Cons:Red light and speed trap warnings can sound off too frequently.

The gist: Short of using a radar detector, Trapster identifies hazards to your driving record through an active community. This type of information used to travel by word-of-mouth, but Trapster makes it readily accessible.