I tried the preview of Digital Editions 1.8 preview so i decided to give some ideas to make it better.
What new things i like in 1.8:
1. The bigger reading space.
2. the new scroll bar when reading.
3. the new bookmark is very stylish. i also like that Adobe took out the Notes (which was very un-useful.) for bookmarks.
4. the search bar is a fantastic add!
1. Bring back the look or make a black interface and make an option for styles.
Why: because the color white is like a blinding light, while the black color also reduces the energy.
also the old buttons are very modern and relaxing, which is perfect for reading.
2. would be better if the scroll bar is smoother.
3. make a button of "edit cover/details" when right-clicked
4. make an on and/or off button for reading (to make the reading page black or white, like turning off/on the lights.)
5. When moving the reading scroll bar, make the moves horizontally, not vertically.
I'll try and give more ideas.