Aloha again everyone,
I noticed one other thing about GPS. I have the Passcode set and the Auto-lock interval at 2 minutes. Previously, if I had the Maps app open and was using GPS to track my RX350, my iPhone never locked - it just dimmed the screen a bit. Now, with the iPhone 2.1 iPhone firmware, besides having to start Location Services prior to firing up the Map app, the Map app "forgets" the GPS location and has to reacquire. Still, as I posted above, I don't really use the GPS app, so it doesn't mater much - this action may affect someone's GPS usage, though, and I just though to pass it on.
HawaiiMacAddict