As a preacher, I sometimes have extensive notes for each slide. In the desktop version of powerpoint, you can resize the slides and note pane in Presenter view. This allows me to make the slides small, and to maximize space for the notes. I would love for that usability to be present both in edit view, and presenter view in the Android version of PPT, both when oriented vertically and horizontally. That way I can use an android tablet to preach from natively, rather than having to export and format material into a PDF, as I have to do now.