What a great and simple non-invasive concept!!! I for one would love to have the opportunity to try this APP. I have many (about 10) risk factors for PD - some genetic, some environmental, some ethnic, some experiential. It will be amazing if I don't develop it. The Michael J. Fox Foundation is helping fund more than 800 research projects. Perhaps you applied and this was rejected, I don't know. It seems like a great project to me. IF you want any American subjects, I am ready and willing to try it. I've registered for 5 clinical trial with the MJFF already. Two are rather invasive and include lumbar puncture and blood and urine tests, which I don't mind if it helps with early detection, treatment and a cure. But this APP makes so much sense. Please let me know if you may start trials in US!! Thanks. My contact info is [email protected]. Keep up the great work!! Reni Winter-Evans