Best Bible Reader/Study program I’ve ever used.  It permits users to open two panes with custom sizes in each of which can be shown the users choice of a Bible translation or commentary (such as Matthew Henry).  If you’ve bought Strong’s you can display Strong’s numbers next to the text and link directly to the Strong’s entry.  The panes will sync, ie scroll together, or not at the user’s selection.  Book marking, highlighting and note taking on a per verse basis.  Best of all the notes can be synced back to my Evernote account and edited/expanded using the Evernote desktop client or web interface (easier than typing on an iPhone). Highly recommended.