[ricg]

Yes, I thought about both scenarios and actually added support for both to my app.

If you rename a note through the app it will go though all other notes and update them to use the new name.

The app also adds datestamps, YYYY-DD-MM, to the file name of each note exactly for the reason you mentioned. File metadata might get lost when copying a file around. The added benefit is that if you sort files alphabetically in Finder, they show up in the order you created them.