A spyware system installed on a cell phone does more than just the
simple task of SMS spy. The system gives the tracker access to a log
that offers all the records of each and every activity that has taken
place using the phone. The tracker is able to access the entire address
book remotely, access the call logs which show the incoming and outbound
calls, and location tracking using GPS to see the exact location of the
owner. Additionally all this is performed undetected by
the cell phone owner and it can be used to spy on a number of phones.
sources:
Mobile Location Finder
Mobile Locator Software
Mobile Location
Trace Mobile Location
Mobile Location Tracker Software