Accessibility in Linux systems

It's worth pointing out that there is more to accessibility than screen readers or braille output for the seriously visually impaired. It's also important to support the following:

- mild visual impairments: large fonts and magnification

- for the deaf: visual equivalents of sound effects, and subtitling of videos

- for those with motor/dexterity impairments (including RSI): speech input, alternative input mechanisms (e.g. tongue, foot, blowing), modified input mechanisms (alternative pointing devices)

- for those with speech and language impairments: alternative input/output, communications boards (i.e. use computer to communicate with others interactively through symbols) - inconsistent speech can be a problem for speech input though.

See http://en.wikipedia.org/wiki/Computer_accessibility#Consi... for more complete coverage of this.