Today Google announced Voice Access beta for Android. It is designed to allow owners of smartphones with disabilities to control their smartphones with their voice. Google is also seeking Beta testers for the Voice Access Beta.
According to Google:
We recently launched Voice Access Beta, an app that allows people who have difficulty manipulating a touch screen due to paralysis, tremor, temporary injury or other reasons to control their Android devices by voice. For example, you can say “open Chrome” or “go home” to navigate around the phone, or interact with the screen by saying “click next” or “scroll down.