[UPDATE] Google maps v2.0.3 : New magical blue circle on your map !

Google maps has been updated to v2.0 to include My Location as a new beta technology from Google that uses cell tower identification to provide you with approximate location information !

So it will work on phones without GPS. Simply fire up Google Maps for mobile, press [0], and the map will indicate your approximate location by centering on a blue circle ! It also works reliably indoors (unlike GPS) and doesn't drain your phone battery at the rate that GPS does.

Just amazing :)

More info over here !

Download it!