I'm trying to launch the Keynote app from the application that I'm building. How can I know the URL scheme supported by Keynote (if any) ?
In iTunes, sync apps, then go to apps in the navigation bar, Ctrl-click Keynote, show in Finder, copy it over to the desktop, change it's name to end with .zip, unzip it, open the payload folder, Ctrl-click Keynote.app, select Show Package Contents and view its Info.plist. :)