The CoPilot app for the iPhone offers free turn-by-turn directions for LIFE.  That’s right, it’s totally free.  But like most things in the app store there’s an up sell.  Drop $2.99 a month, or $19.99 a year and you’ll also get voice guided turn-by-turn directions.  The mapping system is stored locally to your iPhone, letting you chose a small area (megabytes of storage used) or the entire North America (1.3GBs).

Other features:

• 30 days free full-featured CoPilot Live navigation with Text to Speech voice guidance, 3D maps and advanced trip planning
• Free lifetime use turn-by-turn directions with automatic route calculation and 2D maps
• Full street level maps of the US and Canada
• Detailed street maps downloaded via WiFi and stored on the iPhone, so there’s no need to rely on your data network for navigation
• Navigate to a street address or one of millions of businesses using integrated real-time local search
• Free CoPilot LiveLink location sharing lets friends and family know where you are via the Internet, Facebook or on-screen in CoPilot on their own phone
• Customers who prefer to download the complete map of the US and Canada via iTunes rather than WiFi can do so by purchasing the lifetime use, full-featured CoPilot Live North America GPS navigation app via the AppStore.

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