[buckyswider]

Mr. Thorogood,

Go over to the main Titan forum and read the "official" GPS thread. Here's the difference in a nutshell:

- Without a GPS, you can get approximate locations by using "aGPS" (assisted GPS). It triangulates your postion via the cell towers you're pinging.
- With a GPS, it uses the actual GPS satellites to get a much better fix on your location. It can use the cell towers to help out if it needs to.
- There are many progams you can buy which allow you to store the maps locally on your SD card. Then you can use the GPS chips to navigate without any data connection.