Navimatics, which makes a full-featured navigation application for Apple's iPhone, is the latest advertiser to join Mad Mariner.

The Navimatics Charts & Tides application relies on NOAA vector charts, which are downloaded with the application and stored on the phone. Using the iPhone's touchscreen, boaters can pan a zoom around their charts, get tidal predictions, set waypoints, measure distance and perform other navigational functions.

Using the iPhone's native GPS functions, boaters can also see their current position, monitor boat speed and track their course. The application even has day and night viewing options.

Based in Washington, and run by former Microsoft engineers, Navimatics offers Charts & Tides in 10 different versions, each offering a different selection of charts for different geographic locations. All are available at the iTunes Application store.

Mad Mariner is proud to welcome Navimatics aboard.