Handmark Rand McNally Road Atlas for Handhelds Convert PDA into portable road atlas of the 48 continental states Maps cover over 1/2-million miles of U.S. interstates and highways Displays print Road Atlas page and grid numbers for easy reference 5,000+ points of interest; city-to-city driving directions for 12,000 cities Supports both color and grayscale maps; built-in GPS tracking feature