Enable GPS even when phone is off

Enable GPS even when phone is off

I was just thinking other day when I lost my E72 , had there been a utility which could make the GPS work even if the phone is off in the background to run it so that whomsoever steals it can be tracked? Is this possible.. it can remain on in off position of the phone with battery in and just transmit the location to the satellites from where it could be tracked using some google earth or some other software which track GPS id;s.