Linked by Jordan Spencer Cunningham on Thu 1st Oct 2009 17:19 UTC
Permalink for comment 387353
To read all comments associated with this story, please click here.
To read all comments associated with this story, please click here.





Member since:
2006-01-01
3G is extremely fast on MY iPhone, but then again I'm not in the US. 3G on AT&T seems to be the issue in most cases.
GPS - well, that is how long a GPS device can take to get a lock. Depends on the hardware, but many devices can take up to 5 minutes. It depends on location and line of sight of the sky to detect the GPS signal being bounced off of the satellites. If the GPS receiver isn't in direct line of sight (as in inside your car) or in a major metro area with lots of tall buildings, you will be out of luck. It's only the fact that the iPhone uses AGPS, that the fix is often vague but quick. Believe me, having programmed in car black boxes with GPS, it can be a lot worse! As for accuracy - the data is only as good as the amount of satellites in view - you need at least 3 to get a good triangulation.