[Black SC2]

http://www.guardian.co.uk/technology/2009/may/19/gps-close-to-breakdown
It has become one of the staples of modern, hi-tech life: using satellite navigation tools built into your car or mobile phone to find your way from A to B. But experts have warned that the system may be close to breakdown.

US government officials are concerned that the quality of the Global Positioning System (GPS) could begin to deteriorate as early as next year, resulting in regular blackouts and failures – or even dishing out inaccurate directions to millions of people worldwide.

[NashMan]

i have yet to buy one but i sure it will work out ok in the end

[shenmecar]

i dont think this will have a major effect on GPS receiver's accuracy. you only need 3 to pinpoint ur position, theres 27 up there.

[Black SC2]

i dont think this will have a major effect on GPS receiver's accuracy. you only need 3 to pinpoint ur position, theres 27 up there.

Right, some of which are failing, and most of which are in different hemispheres from wherever you are using your device. It won't take the loss or malfunction of many satellites to throw things off.