ASL may be the dominant sign language, as English is the dominant spoken language, but there are many, many other sign languages spoken in the world. I was amazed to find out how many in this Wikipedia article: http://en.wikipedia.org/wiki/Sign_language#Classification_of_sign_languages
Yes, Ann and Nadine, good questions. I think this is a great use of this type of technology but it would be good if it could be used worldwide. For example, I have a friend here in Portugal with two deaf children and she speaks with them in the Portuguese version of sign language.
Truly a great advancemnet in the field of communication, It is equally benefical for mute people as well, perhaps and additional module of converting hand gestures to voice may also be added to make it more flexible.
The project might also open professional horizons for many physically impaired people and become the basis for landing them jobs as well.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.