Startup Idea : Find a/my car parking

Find a parking. A solution that will provide real time parking area information in an open field or inside malls parking. The user could plan ahead of time where to go and check real-time available park slots (occupied,Available,Floor, Slot #s). This way, driver will not waste time going to a particular place and take some luck to have available parking Find my parking. if the parking is too crowded or very huge are, people tend to forget which they parked. An application that could provide a geography location (Map based for open fields parking) or a particular parking slot (malls, indoor parking)