I'd wait a bit to update guys, I already found several of bugs, heres a list of the ones I have found:When moving apps, sometimes the app gets stuck and you end up with a static app that you can't open or move, to fix it you need to restartimessages do not get sent on occasionsTurning on zoom in accessibility can make the screen unresponsiveAudio Messages in iMessage do not get sent on some occasionsNotification Center will not scroll sometimesThe entire touch screen will on some occasions become completely unresponsive or half responsiveIf you somehow manage to do so, you can put the settings app into itself causing iOS to crash for an odd reason. I would update after the first patch is released, that way you don't have to deal with the above that I have discovered.
And I'm sitting here with iOS 4.3.
And I'm sitting here with iOS 6.