See on www.icloud.com
This technology will be phenomenal as it evolves and improves! Most especially for individuals who need access to communication, the internet, the community and environment, etc. due to a physical disability, injury, or because they are non-verbal. Some indivuals are currently using Tobii eyegaze for communication and access: http://www.tobii.com/en/assistive-technology/global/
This is significant to access everything in regards to daily living, and can be a critical component of communication for an individual.
See on theeyetribe.com