I just received the OTA. I am in San Diego Ca. Nothing really awesome with it. Un-rooted then rooted again.
SIM Error notification has been fixed - Never had the error so not sure if that was fixed.
Improved camera features and quality - Seems the same but again never really had any issues with the camera either.
Improved stability of menu access, browser, phone dialer, video playback, and music player to prevent force close errors and lockups - Never had force errors or lock up to begin with.
Updated group messaging notification - Did see a difference here! Works well.
Improved 3G/4G data connectivity. - Fail, still spotty on/off 4G LTE at my house.
Maintain network connection upon completion of voice call. - Never was an issue.
Background color has been adjusted to improve readability in Lapdock connection UI menu items. -Definite improvement on readability.
All in all not much difference and the one thing I was hoping for (4g connectivity) doesn't seem to be addressed.