As I understand...
Users want:
Font SIZES in the mobi/prc to be as many choices as epubs has (i.e., 5)
Font STYLES in mobi/prc and epubs to CHOOSE from the font styles in the settings and/or user loaded fonts, and have that STYLE stay on unless changed by the user.
As it is now, epubs cannot change the style from the Pocket Pro, it necessitates changing the ebook FILE as programmed by the editor. And now, for mobi, you can choose one of three choices set by the system, (or can you have user loaded files available?) but it does not stay when you reload the file.
Also, for epubs, uses want the status bar WITH the progress meter AND the clock.
[how'd I do with the clarification?]
AJ