Hi,
I really like the idea of storing notes together with mails on an IMAP server to make them accessible from everywhere. And thus your plugin seemed to be what was looking for. But as far as I understood the notes are stored in a separate table and not as messages on the IMAP server (Is this correct?).
For me this has several drawbacks as one always has to use the roundcube frontend to view and edit the notes. The notes are not accessible by other applications.
Did you already think of storing the notes as IMAP messages in a special Notes-Folder. Apple's notes App does so and creates Messages like the one below for each note in a folder called "Notes":
Subject: Test Note
From: "Daniel XXXXX" <daniel@XXXXX.XX>
X-Universally-Unique-Identifier: 34402265-14EE-4B2F-A7DC-F71C178B1268
Content-Type: text/html;
charset=utf-8
X-Uniform-Type-Identifier: com.apple.mail-note
Message-Id: <C9A1E495-561C-4B58-8846-A3B192EF92D5@XXXXX.XX>
Date: Thu, 11 Nov 2010 14:15:00 +0100
X-Mail-Created-Date: Thu, 11 Nov 2010 14:15:00 +0100
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (iPhone Mail 8B117)
Test Note
I know "Only because Apple does something this must not be good". But this has the advantage that the notes are available in every mail application and not only in roundcube. And I don't see any real drawbacks...
Best regards,
Daniel.