Add a service that will put pings/icons on the maps to show yard sales and allow these maps accessible on all platforms not just devices. You could also expand this to all local community events, school functions for charity like carwashes etc. As far as I know there is nothing currently available for live updates of yardsales and things of that nature. As a mother in a small community that has no need for any apps currently available, this is one I would pay for. Even in this small community, with my gps, I have trouble finding yard sales.