Garmin is a pioneer in the GPS navigation system market. Their latest entry is called the GPSMAP 640. The GPSMAP 640 is ultra-portable, powerful, rugged (even water-proof), and touch-screen navigator equipped (super-bright 5.2” WVGA). The navigator offers an extensive collection of street maps and charts to help with navigation, and the unit features a high-sensitivity GPS receiver that will work in many locations other similar solutions will not. Browsing through the unit’s menus is intuitive, and the GPSMAP 640 responds via tap or drag operations. An optional GXM 40 antenna is also available (sold separately) that provides a graphical display of XM WX Satellite Weather data, including NEXRAD, wind speeds, visibility, severe weather storm tracks, etc. The system is targeted for both United States and worldwide markets. The Garmin GPSMAP 640 will soon be available for $1,199.99.