This may be of interest to you because of its size and easy of use and you don't need to stick it to the windshield.
Portable GPS navigator is only the size of a deck of cards.
The Nüvi GPS Navigator is also a traveler’s reference and digital entertainment system, all in one. It provides detailed maps, automatic routing, turn-by turn voice directions and touchscreen control. Use it in your vehicle or as a handheld GPS—it’s small enough to fit in a pocket or purse. Navigate to an address or search points of interest—places like hotels, restaurants, shopping centers and tourist attractions. Nüvi automatically calculates the fastest route gives you voice-prompted turn-by-turn directions along the way.
Preloaded with City Navigator NT maps of the U.S., Canada and Puerto Rico, with no downloading required
Unique “text-to-speech” feature calls out turns by street so drivers can keep their eyes on the road while navigating busy traffic or tricky roadways
Automatically recalculates the quickest way to get back on track if you miss a turn
Audible and visual navigation instructions and warnings
Choose 3-D map view or 2-D overhead view
Simplified PC connectivity (similar to digital camera) using USB Mass Storage with access to either the Secure Digital memory card slot or the 700 MB internal memory directly from your PC desktop
Audio book player from Audible.com
JPEG picture viewer
World travel clock with time zones
Currency and measurement converters
Powerful built-in speaker
Use the Point-of-Interest (POI) Program Loader, available free from Garmin.com, to set up proximity alerts for school zones, safety cameras and more. The Nüvi features a 3 1/2" diagonal touchscreen display and comes with an AC charger, vehicle suction cup mount, carry case, 12/24-volt adapter cable, dashboard disk, USB interface cable and quick reference guide.