iBooks Formerly listed in the third-party-apps settings at the bottom of the Settings screen, this item is now grouped with the other media-type settings (Music, Videos, Photos, and so on). The settings in this screen are unchanged.
Newsstand In iOS 5, you enabled automatic downloads of new issues of Newsstand publications in the Store screen. There's now a dedicated Newsstand item in Settings that contains these options.
Update 9/20/12, 9:15am: An earlier draft of this article was accidentally published; the text has been replaced with the edited version. 9:45am: Added information about Government Alerts, Ad Tracking, and Late Night EQ. 10:00am: Removed mention of WiFi Plus Cellular setting, which is not yet available.
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