It is all very well going off and putting some great piece of technology together. But it is really important that this will meet the needs of users.
I work at Designability and we spend a lot of time understanding user needs before we jump in and start designing or building things.
Here are some interesting resources when you can find out some unmet needs.
There is this IfOnly (it worked) website with problems submitted by users that we ran a few years ago. https://www.youtube.com/user/IfOnlyApp/videos
Bespoken run a similar forum for people with disabilities http://www.bespoken.me/forum
There is also Enabled by Design http://enabledbydesign.org/
In the USA RESNA have a good list of resources here http://www.resna.org/knowledge-center/peer-organizations
Does any one else have ideas or contacts ?
In my experience, wheelchair users are often pleased to be able to talk about some of the day to day accessibility challenges that they face. If you really want to submit a great application, why not see if you could form a team with some wheelchair users ?
People who have survived a stroke can also have some problems getting around and may be pleased to talk.
When ever you approach someone to talk, please remember to do this sensitively and not make assumptions about what they may or may not feel.
If you cannot do this, design students will often simulate a physical limitation. Go borrow a wheelchair, or get some crutches and see how you get on around home and town!
