Stu has finished the iPhone version of the Sydney Climbing Guide that he has been working on.
Years ago, Peter Monks from the Sydney Rockclimbing Club started an online guide to the crags of Sydney called “Sun, Surf and Sandstone”. It was quite common when at Sydney region crags to see climbers walking around with large printouts from the web pages of that guide. The latest version of the project has been undertaken by Stu, also from the SRC. It is still available as an online guide or in print on demand books.
The iPhone app has a huge amount of information in it. Plenty of photos of the routes, topos, maps, crag information etc. As well you can tick off the climbs you have done and add your own notes.
Update (November 2014) Now available for Android – See this link.