Several of the Apple-provided apps have informational/help text in their settings. For example, the Keyboard settings screen includes, under the “.” shortcut toggle, the help text "Double tapping the space bar will...".
I know I can do this in my app by adding a group footer, but is it possible to do this in the settings app by adding a field to the plist file in my Settings.bundle?
According to recently changed Apple document, a FooterText key is available in PSGroupSpecifier dictionary, which is only available in iOS 4.0 or later.