GPS navigation system delivers the position?

On the market there are more and more devices that support satellite navigation system GPS. This is a different car navigators, smart phones, communicators, PDAs and other portable gadgets. In general, the market is growing and thriving. Meanwhile, according to some experts, in coming years leadership GPS can shake. The fact that the functioning of some satellites in orbit may be impaired by reason of their failure.

Enter the same new satellites may be disrupted because of a not too successful for the establishment of GPS-satellites in spite of the 2-billion financing. So in the future, positioning accuracy can be reduced due to reduction of operating satellites. However, it is hard to believe, since the number of different services that use GPS, too large, so it is unlikely to allow the U.S. is the development of the situation.

European analogues GPS - Galileo and Russia's GLONASS - can not make a decent competition GPS, perhaps in the near future the situation will be different - the Russian government had high hopes for the project GLONASS.