I've noticed a few changes, which weren't necessarily acknowledged in the pre-release notes. In the lock screen, "Verizon Wireless," along with the date and time have been centered and aligned. In the lock screen, the actual slider to unlock the phone has been moved up. (It used to be a little closer to the bottom of the LCD.) Thus far, that's what I've noticed. What have you noticed that may, or may not, have been released in the pre-release notes.