I am not sure if this would be classed as a bug or not but if I make the ‘content area height ‘ of the vertical scrollbar say 1000px in iphone 5 design view, then switch to iPad to check the layout, then switch back to iPhone 5, the ‘content area height ‘ of the vertical scrollbar reverts back to default 348 px. and then has to be reset back to 100px. Whilst this is not critical is it supposed to do that?