Accessibility on iPhone OS

The iPhone has revolutionized the lives of blind people with its incredible built-in VoiceOver technology - but can they use your app? A few simple steps can expand your user base within this growing community of iPhone users. In addition, adding accessibility to your app makes automating your UI testing much simpler. Discover how your app can be truly universal and simpler to test by adopting the iPhone Accessibility API.

WWDC 2010 - iOS