iOS 4.3 has landedMarch 9, 2011: 1:31 PM ET
As predicted, it arrived a couple days early, for the iPad, iPhone* and iPod touch
Between downloading, backing up and re-syncing, the procedure took me nearly 20 minutes to update my iPad. When I checked, iMovie and Garage Band had not yet appeared in the App Store.
Also on Fortune.com:
[Follow Philip Elmer-DeWitt on Twitter @philiped]