A) It would be great if I can view notes according to location. Just like in iOS photos I can look at a map and zoom in and see pictures taken at that location, it would be useful to see notes created at certain locations. And the ability of turning this feature on and off for each note as well as modifying a note to fit a location. Like a time stamp for location. 

B) Also, please, a calendar view, even just a simple monthly view with a mark signifying that on that day this note was taken.  This way I can scroll through the months to look for notes from a certain time period. Something I used a lot in the app Amazing Note. 

C) A list view with a couple of lines preview instead of notes arranged in a grid.