For reading purposes on mobile devices, what is the way to go? Paging or scrolling? If I want to give the reader the option of a scroll, should the controls for that be on-screen or in a menu?
Scrolling + "Load More"
Paging on a mobile divice is frustrating. Tapping still is still inaccurate, though most have gotten the hang of it. But if they are reading through 10 pages, chances are they will have trouble pressing the button 2-3 times. Also, if the information is being pulled via the web, they must reload the pages assets which takes a while for safari to render. Further more, it breaks their cognitive flow, though just for a moment, can make then move onto something else.
Now you dont want to load it all at once either I assume, and scrolling through that would be nice. So if you just load 20 at a time and then have a large "load more" button, people can keep reading.
Scrolling, and navigating through a lot of info is a main part of any app, and I strongly urge you, whatever you choose, not to put it into a menue.
Information Architects did an article on Scroll vs Card on the iPad, and while it's not all relevant to mobile, it's a fantastic read regardless, and is doubtless helpful. See http://www.informationarchitects.jp/en/ipad-scroll-or-card/