Google has a lot invested in knowing where you are. The future of search, and many of the services that Google offers is going to rely upon it being accurate, too. It can’t be off by 30 meters, like it might be with cell tower triangulation. It can’t rely upon a GPS system initially built for aircraft with multiple antennas. It needs to be able to work indoors as well as outdoors. Unlike the electronic navigation device below, it also needs to be really small.
The purpose behind a Global Positioning System, or GPS, is a satellite-based navigation system helping to overcome problems with previous navigation systems. We know that Google has used GPS in mobile devices to make it possible for a number of location based services to function.