Not only Japan, Russia and India are working on project to improve the currently American-made GPS technology.
Japan promised for up to 1-metre accuracy, as compared to existing 10-metre accuracy. But it will take some time for the technology to hit our shore. Until then, should I follow Nazrol's step in acquiring one?
TOKYO, Jan 16 — Japan is working on a new global positioning system that will be 10 times more accurate than the system that is currently in use and will be able to pinpoint a location down to just one metre.