Bob: A good compromise that would assist in accomodating all disabilities would be insstalation of universal wireless or hardwire connections and communications protocols to permit people with various input or output needs to use there individual devices to appropriately communicate with the voting machine. These are called electronic curbcuts. Is this perfict? No, but it could be a great start. For example, when people need to use augmentative communication devices, it is preferable for them to have there own customized devices, anyway. Mike