I like how you flip or flick sideways to turn pages. Why not add a feature that lets you flip up or down to switch between resources? I could flip down from the ESV to read the Word Biblical Commentary on whatever passage I happen to be on, flip sidways while in WBC to turn pages, then flip up to switch back to ESV.
It would be nice to set a couple different book groups so that you had maybe two or five books total that could be linked to follow whatever passage.
Sorry if this has been discussed before, I haven't been very active on the forum.