Orange in the UK have partnered with a whole host of organizations so that you can do good through your mobile. Play England/Love Outdoor Play are there and state:
"Help us map great places to play on our new app, part of the Do Some Good app from Orange. On the app you can tag places to play and tell us where's good (or not so good) to play. We will use the data collected to add to an Outdoor Play Map, launched later in the year."