Free GPS cell phone tracking application, BuddyWay.

Though there is no developed open source application that deals with tracking of cellphones and other gps enabled devices through internet. Buddyway is one of those application which provides some of the basic features involved in gps tracking like tracking one's own cell phone for route tracking and location identification in a map.
It is not a great issue that in the mere future there will be one such software application.But for now buddyway could be a possible alternative.