Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Notice of this is on Apple's website (no time given - just "today"). But if you try to update, iTunes doesn't show a new update available yet.
 
I can't believe that after so many false alarms, Macrumors missed the day it was really launched 😀
 
Great. I could have saved myself those three hours yesterday when the 4.2.1 install failed and I had to restore and resync everything! Let's see what happens tonight then....
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.