Check out the tools at CATS (
CATS). We have a dictionary called MySignBookLink that is easy to use. If you are interested, we are trying to continue development. There are approximately 27,000 words. Technically it is just html based, nothing fancy needed.
Also, our lab at GT is looking for cs majors interested in sign. Our group also focuses on cell phones. If you are looking for a masters or doctorate there may be a fit.
Harley Hamilton
hhamilton@gatech.edu