updated 12:13 pm EDT, Tue June 18, 2013
Could let users hide pre-installed apps
Tweaking the iOS 7 beta reveals hidden settings that hint at Apple plans and/or concepts for the firmware, reports say. These include OS-wide edge- and corner-swipe gestures, which would come on top of edge-swipe commands in apps like Safari and Messages. The edge gestures would reportedly be used for quick app switching.
Other important settings would let people hide pre-installed apps, or create folders within folders, both long-running demands from iOS users. In particular many people have complained about icons like the one for Newsstand, which can't normally be deleted or hidden within another folder. Another potential option would be the ability to close folders by pinching instead of tapping outside the folder or on the folder itself.
Cosmetic options control blur, coloring, and animations. Since these would affect the fundamental appearance of the interface, Apple is unlikely to build them into the finished iOS 7 release, due this fall.
Apple has sometimes experimented with gestures that did make it into later iOS updates. The multi-touch task-switching and app-closing gestures on the iPad, for instance, were once buried in Settings but are now readily accessible in iOS 6.