I am sure that these have already been mentioned, but since I have been unable to find a thread I wanted to make these few recommendations.
For iPad:
1. Highlight function
2. Book mark capability
Logos 4 Mac:
1. the ability to highlight text anywhere in the program (notes, clippings etc.) and change the font to any font available in the Mac operating software.
2. Easier method for designing and adding symbols for highlighting text under inductive highlighting
