Nu ser jag att lösningen förmodligen kommer med IOS 6 Apple - iOS 6 Preview! Det här verkar vara precis vad jag behöver:
iOS 6 comes with even more features to make it easier for people with vision, hearing, learning, and mobility disabilities to get the most from their iOS devices. Guided Access helps students with disabilities such as autism remain on task and focused on content. It allows a parent, teacher, or administrator to limit an iOS device to one app by disabling the Home button, as well as restrict touch input on certain areas of the screen. VoiceOver, the revolutionary screen reader for blind and low-vision users, is now integrated with Maps, AssistiveTouch, and Zoom. And Apple is working with top manufacturers to introduce Made for iPhone hearing aids that will deliver a power-efficient, high-quality digital audio experience.7