I have a vertically scrolling uiscrollview - imagine an \'about this app\' page of a tab bar app which goes on a bit and requires a scrollview. It only contains a few images
On iOS 6.0 you can drag a Container View inside your Scroll View. This will automatically create a new View for your content, outside of the current scene. You can then resize this view as big as needed to fit your content.
I believe you would still have to set the ScrollView content height at runtime, but at least you can design you content view at once without having to scroll up and down on IB.