iOS 4.2 launch pushed back due to iPad Wi-Fi bug
iOS 4.2 builds on to bring multitasking and folders to the iPad. There is no information on the widely speculated AirPrint function, which might finally end up outside the package. An iTunes update to 10.1 is not yet out and usually it takes several days after an iTunes update for an iOS refreshment to come out. Mac OS X's fifth update since Snow Leopard was released several days ago. We will keep you posted on this as we find out more.
source: MacStories via Engadget