Great idea! This could be revolutionary if taken seriously. My concern are : 1) Such apps need some kind of privacy and data encryption. What are the steps that you are taking to handle medical information without violating the privacy of patients? 2) Considering the target market are kind of rural there would arise the issue of connectivity to the internet. Since its cloud base, how are you planning to make sure the app works seamlessly without Internet connectivity?
I have not read all the comments so may be you have addressed these issues already.