
You may want a gps system for your wrist, your backpack, your motorcycle or your RV. We're on board with you on that. However, you may just want to find the pizza resturant in the upcoming town, or easily navigate the streets while visiting relatives... we understand.
There are many varieties of GPS units to choose from and most are very well suited for multiple tasks. Some systems are very focused in usage (like the "gps wristwatch" style units), but most can be dismounted and carried around with you for walking, etc.
Check out the various gps systems and the gps learning center for more information.
Learn more about GPS (Global Positioning System) at gps.gov
Also check out GPS information on Wikipedia.
more info coming ;)