Quote: Originally Posted by
2k1Toaster 
What 2 second delay? Mine is updated at 1Hz. When I move, it is always t<1sec before I see a move on the screen. If there was a 2 sec delay, if I was stopped it would take t < 2sec to get movement.
If you estimate the delay between what you see on your screen while driving and your actual location to be less then 1 second, than you do have a very good system. My setup in my estimation generates greater delay. Two seconds is my best guesstimate. I think that's quite reasonable considering that 1Hz of a GPS receiver gives us about 1 second delay, plus the GPS software accounts likely for another 1 second.
[EDIT] I re-read your reply and I just realized you are likely not talking about the delay between the GPS position on the screen vs. actual location on the road while in motion. I think you are referring to the screen refresh rate only. In that sense you are correct.