A good article to read

Apple  puts eye into iDevices

Apple has for years led the general computing industry in building software that allows disabled people to work and play on almost level computing and communications fields with the rest of the community.

Read more: http://www.smh.com.au/digital-life/computers/apple-puts-eye-into-idevices-20121128-2acch.html#ixzz2EhJIU3Xf