One of the best features of the Mac is that there are tons of accessibility features for individuals with visual impairments and hearing impairments. Fortunately, Apple has moved some of its accessibility technologies over to the iPhone 4. Namely, Braille display support.
Users who are used to reading Braille typically prefer that over a screen reader (such as Apple's VoiceOver technology). In this case, they can connect what's called a Braille Display to their iPhone over Bluetooth to read in Braille what's on the screen. Users can then navigate around without even seeing the visual user interface of the iPhone.
Below is a video of musician Victor Tsaran navigation around on his iPhone 4 using a Braille Display (YouTube link here).
via 9to5 Mac
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