Basically, it would be the same thing as potatis invalid's TWHL shoutbox extensions for Firefox and Chrome but instead of being a browser extension, it would be a standalone desktop application (like Hammer, Sledge, Steam...) You would be able to:
- Read the shouts (obviously).
- Automatic shouts list refreshing whenever someone shout (or time based if it's not possible).
- Post shouts.
- Hide the application in the system tray and be notified whenever someone shout.
- Maybe more that you would like to see.