Android 4.0 For Blind or Visually Impaired Users
Android 4.0 (ICS) has some interesting features for blind or visually impaired users. With accessibility mode enabled, smartphones such as the Galaxy Nexus will dictate the name of the icons has you touch them and instruct you to tap it if you want to use this application. You can also use 2 fingers to scroll the current and you’ll get audible feedback to know where you scroll.
Google has setup a YouTube channel (EyesFreeAndroid) to showcase features and applications available to blind and visually impaired users.
Here’s an example below showing the touch exploration tutorial.