too early to tell pertaining to battery life. wifi signal does not seem as strong as it used to be...
give me a week and i will have a better idea.
I've noticed increased battery life while the phone is idle but no difference really while actually using it
I wish someone would carry around two Verizon Galaxy Nexii, one on 4.02 and one on 4.04 and use them identically, tracking battery life, signal strength, OS performance, etc, and then report back with a comparison.