iPhone 4 with Improved GPS Accuracy and Speed over 3GS
One of the hidden benefits of the 3G iPad was improved GPS accuracy and speed over the iPhone 3GS. The improvement was attributed to a newer GPS chip from Broadcom. iFixit's teardown revealed that the iPhone 4 shares the same Broadcom BCM4...
http://www.macrumors.com/2010/06/26/iphone-4-with-improved-gps-accuracy-and-speed-over-3gs/
