I'm currently in Bosnia, which has been hit with the worst flood in its history, together with Croatia and Serbia. Governments are completely unprepared, as is common in these parts. With some colleagues of mine, I'm trying to set up a website and mobile apps that the people struck with the disaster and the rescue services could use to coordinate.
What we need is an Android/iOS/Winphone application (or usable mobile site) and a website with a backing database which would allow everyone to easily enter information and retrieve it. Information like where people are located (gathered with GPS from mobile devices perhaps?), where the supplies like food, water and drugs are, and where people need them the most.
Time is critical, and we would prefer to just use any existing solution, with bugs, with problems, doesn't matter, as long as it is usable. In this situation, it's much more important to have a working solution fast, then to have a fantastic solution in 5 days.