January 4 - 2:35am EST   Garmin recently unveiled its Colorado series of handheld GPS units, and the Forerunner 405 wrist-worn GPS device, as well as the super-sized Nuvi 5000 for use in large vehicles. The Colorado 400t uses a 3-inch color screen to display three-dimensional topographic maps, and is pre-loaded with a complete map covering the US. Tracks, waypoints, and geocaches can be wirelessly transferred with other units, and the device’s “Rock n Roller” thumbwheel makes the device easy to navigate. Garmin will show the new lineup at CES 2008, and although a release date was not mentioned, the Colorado 400 series devices sell for $600. [full story]