Create simple persistent application (Notepad)

To make it simpler to communicate how to use the persistence subsystem, create a very simple and dedicated application that explicitly needs persistent storage.

My proposal: A notepad.

Main screen:

• Application title "Notepad"
• * Scrollable List of note titles
• Button next to each note title.
• + Button to add new note.
• ... and of course any other graphical design that you wish

Second screen:

• Editable title text field
• Editable note text area
• Button to delete note
• ...?

Use the PCL key-value store to associate title with Note.
Use file store to write content (or use key-value for that also...)?

Verify that notes are persistent across boot.