Quote:
Originally Posted by tmbg
GPS is "allowed" to be as accurate as it possibly can be. Selective Availability was a terrible idea, and was turned off in the early 90's.
Most modern GPS receivers are accurate to 2-3 feet. The iPhone GPS isn't a shining example of an accurate GPS.
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Wow... I wish. With differential GPS you can get down to centimeters, but the iPhone doesn't have that. Would make for a cool app though. You could actually somehow network 4 or 5 iphones and increase the accuracy of them all.
Look up PPS, SPS, and SAASM. I can guarantee you that mil GPS is still more accurate (and more bulky).
