I think this is a wonderful and brilliant idea. Having Parkinsons you can well imagine how difficult it is to frame a picture in the camera (freehand) when your whole body is swaying and shaking
Here is a shot I managed while excercising some control (and entered in Poty09)
I wish you all the luck and hope PWD becomes international
I also hope you encourage your membership to this web site; Simply as with the design and capabilty of modern cameras, disabled people are not as disabled as they may think when it comes down to getting / making good photographs.
Regards
Andy