does the itouch has gps system and how does it works?
Itouch do not have gps navigation system this time. but have another gps navigation funtions with itouch, You can call up google maps via the web browser, it will not show you where you are located, you would have to center the map on your location.
In the future, after the development kit is released, someone could write an interface to a bluetooth GPS for itouch.