I will also cast my vote on having notebook custom sorting. I like to view notes in one notebook by date and in another notebook by updated date. There should be a number use cases that would justify having notebooks to have their own sorting preference.
Thanks
Race.
Having some type of mapping of notes would be very useful. I like how it's done in the Day One journal as that feature is nice to find notes based on where, as well as when, I wrote them.