Many people seem pretty happy with iOS 8, Apple's latest operating system for iPhones and iPads. But not everyone is. If you've found yourself stuck with an older phone that isn't working as fast as you'd like, or have some other objection to any of the changes iOS 8 has wrought, you still have the option to go back.For now, at least.See also: 5 Common iOS 8 Complaints And How To Address ThemThe problem is that before long—and outside of Apple, no one knows how long—Apple will stop digitally signing iOS 7.1.2, which will make it impossible to restore it on your iDevice from Apple's servers.