Sometimes I hear people saying: "That software are for handicapped" or "I cannot make this software work for handicapped as well".
I read a great presentation over at slideshare.net: Georgia Tech hacking Accessibility
Highly recommended reading. To summarize: Software developers and companies should think that people with different disabilities are extreme testers. If your application can be accessed and work for them, it will be easier for everyone else. Instead of thinking of it as an obstacle...
An example is how visualization with symbols, text-to-speech and speech recognition now are getting more and more common. In the beginning this was for people that couldn't access computers without help.
For information about symbols: (In Norwegian) www.symboler.no. For english: www.widgit-online.com