Untitled App continues to evolve with lots of new features in Preview 4. See some of them in the screenshot on the right like

• Better controls for Zoom and Rotation
• Improved Advanced Pan & Zoom
• Audio Markers, you will love them!

Of course, there's lots more

• Export to a QuickTime movie
• Better iTunes integration with search
• Improved Storyboard Editing
• and many others...

Check out the new version at www.untitled-app.com.