The submission date for this app competition has been extended until 31 December 2009. Finalists and the winner will be announced at the http://www.healthyparkshealthypeoplecongress.org/.
Dispersement of the prize money of $AUD5,000 and the judging criteria are being finalised by Parks Victoria. So let your friends know about registration via http://worldparksday.org/world-parks-apps-competition.html.
Check out http://www.openstreetmap.org for data input for your app, what else is a good input?