Apple iPod touch iOS 3.0 - Manual (Page 90)

If you drag the map and tap again, iPod touch centers the map back to your
approximate location.
iPod touch uses Location Services to determine your location. Location Services uses
available information from local Wi-Fi networks (if you have Wi-Fi turned on). This
feature isn’t available in all areas.
If Location Services is turned off, you’ll be prompted to turn it on. You can’t find your
current location if Location Services is turned off. See “Location Services” on page 113.
Note: To conserve battery life, turn Location Services off when you’re not using it. In
Settings, choose General > Location Services.
Get information about your current location: Tap the blue marker, then tap .
iPod touch displays the address of your current location, if available. You can use this
information to:
Get directions 
Add the location to contacts 
Send the address via email 
Bookmark the location 
Use the dropped pin: Tap , then tap Drop Pin.
A pin drops down on the map, which you can then drag to any location you choose.
Replace the pin: Tap , then tap Replace Pin. iPod touch drops the pin in the area
you’re currently viewing.
90 Chapter 12 Maps