I have noted the following differences in this firmware upgrade:
1) Back button bigger and more rounded to make it look more like the LG Dare.
2) Changed the dialpad and the keyboard to give it a more rounded look and more responsive to touch.
3) When the phone is places against your ear, instead of saying "push to unlock", you must slide a key over to a small padlock.
4) The option was added in the display settings to show the main menu upon flip open.
5) Overall increased sensitivity.
6) The phone sounds louder compared to before. (May just be me).
7) The brightness adjust is smoother and more realistic based on surroundings.
8.) Speed Dial
9) Added a "Go Back" button to the bottom of the side bar when looking up contacts by letter.
That has been all that I have noticed at the current time. Feel free to add anything I may have missed.