I see threads in lot of other places about how bad Samsung's GPS is (in fact the main site thread on the possible Samsung Galaxy S2 is filled with people complaining about Samsung and GPS).
I know there is a sticky above about a GPS Cache fix, but not much in there lately, haven't seen to many threads down here about it. Is everyone just accepting it doesn't work? Or have software updates resolved the issue on the Epic?
I really would like to get an Epic, but I also really need GPS.
All Samsung Galaxy S models, including the Epic, have had bugs. But those bugs are not all the same. The Epic does not even use the same GPS chipset and controller software as its GSM-based cousins (the international I9000, the AT&T Captivate, and the T-Mobile Vibrant). Different hardware. Different software. Different bugs. Different bug symptoms.
I used to own Vibrants and switched to the Epic when it was introduced because of the GPS. After extensive testing and research on both platforms, I concluded that the Epic bugs were not nearly as bad. And for the worst of the bugs -- the failure to lock because the GPS cache data is mishandled -- there are workarounds. I recommend the Cold Start workaround documented as a sticky on this forum. Alternately, you can force a temporary lock by rebooting the phone.
Another bug specific to the Epic is that the internal
estimate of accuracy is wrong. It always estimates its accuracy at 30.0 meters (98.4 feet), instead of calculating the estimate dynamically. This is mostly an annoyance. For example, in Google Maps or My Tracks that shows up as a bogus 30-meter circle of uncertainty around the map cursor. But the
actual accuracy, tested empirically in the field, is on par with other smartphones.
These are bugs, and Samsung/Sprint need to fix them. (In fact, Sprint and Samsung have not even acknowledged publicly that the bugs exist, although we know off the record that Sprint has confirmed it.) But the Epic bugs are not as bad as the other GPS bugs that have afflicted some other Galaxy S cousins.
So if you demand a perfect GPS that "just works," the Epic is not there yet. Most competitors are. Personally, I chose to keep the Epic, warts and all, because of its other appealing features. Meanwhile, I and others press for a fix of the remaining GPS bugs. You might make a different choice, but at least your choice should be an informed one.