This module is an addon to the current Dolphin's messaging system. It allows to view messages groupped as dialogs, thus giving a member an opportunity to always see the context of the discussion. Also it quickly shows the list of dialogs that are having new messages.
Here is the list of the module's features:

Dialogs page:

• Lists all dialogs of a member
• Shows total numbers of messages (sent + received)
• Shows number of unread messages (if any) and also makes the box's background light green to help a member to notice that there are new messages in a dialog
• Allows to move the entire dialog into trash

Dialog view page:

• Shows messages in the form of a dialog.
• Allows to change the order "latest first"/"oldest first". And stores that setting in a member's profile.
• Shows first/last 10 messages and allows to load more via AJAX request by clicking on "Show more" button.
• For an unread messages allows by clicking on the "New" icon to mark them as read
• Allows to quickly move any message to the trash

Links to full size screenshots (opens in new tab):
Dialogs page
Dialog view page