The feature is reportedly accurate enough, but can be a little repetitive to control your iPhone or iPad with left or right head movements since it cycles through all of the options on your screen and you move your head when it borders around the option you want.
You can also use left and right head movements to act as a home button, start Siri, open Notification Center, open the App Switcher, increase or lower the volume, or just tap on an app or other option.
This is definitely a great feature for accessibility users, making the device more user friendly for those who face obstacles with the functions of the phone.[Developers have already got their hands on the second beta release of iOS 7, and there are still plenty of new features left to discover. According to 9to5Mac, and thanks to an anonymous tip, the “Accessibility”…](http://feedly.com/k/19vz1U5)