Speaking as a programmer, there are 3 things I think we could use to help further Open Source development in the area of accessibility.
1. A list of rules of thumb or guidelines for what would make programs more accessible. Am thinking of something like the 508E guidelines for web pages. However, this would be for C/C++ programs and other programming projects. It may have to be slanted for different language/user interface options. It would be great if people with accessibility issues in conjunction with some of the programmers who write these kind of programs could put together some guidelines based on experience. Then other programmers might find it easier to incorporate these techniques in their project.
2. A list of projects that include accessibility features and need developers or other help. That way interested programmers and others wanting to volunteer will know where they can offer their assistance and where their time and effort would be needed.
3. A pool of volunteers who have accessibility issues who are willing to test out software with accessibility features. When I write web sites, I try to design them with accessibility in mind and to follow 508E guidelines. However, without feedback from actual users, it's only your best guess as to whether what you've done is useable or not. There may be some simple change that would really improve things, but you don't have the same perspective to realize it.
Anyone interested in working further to bring more highly accessible programs to FreeBSD?