Google Maps for Mobile has a new feature, “My Location“, that lets you know your approximate location on your Google Maps Mobile-enabled phone with a simple click. All you need to do is press “0″ on your phone to see your location on the map.

If you have a GPS-enabled device, this blue dot corresponds to your GPS location. At times, or if you do not have a GPS-enabled phone you might see the blue dot surrounded by a light blue circle to indicate uncertainty about your location.

Lifehacker reader tmobilewinguse said, “It had me within a half mile of my location which is pretty good for non-GPS.” Another Lifehacker reader commented, “Mine gives me a 5 mile radius. I’m somewhere in Center City, anywhere from 6th street to 1st street.”

I remember seeing something similar in a movie (probably The Sentinel) that the government use that to track down people.