Here is the list of features in the enhanced edition:
- Zoomable, pin-sharp photography, allowing you to appreciate the fine details of Citadel miniatures in a new light;
- a Glossary – tap terms and rules to see their details in an instant;
- Scrolling text, designed to optimise the reading experience for your phone or tablet;
- Pop-up content – bring up extra information at a touch;
- Panoramic art and photography – designed to bring out detail in a way that makes the most of your display;
- Bookmarks – got a reference you need to use often? Add a bookmark and jump between your pages with a tap.
You can bookmark epubs/pdfs, you can also zoom and auto scroll text, it just depends on the app you use.
The pop up content (tap on keyword, etc) is kind of handy and having pictures you can rotate is nice.
The big advantage is the standard works on everything. If your an apple fan boy then it might be worth the extra coin, other wise its just easier to use the standard.