As a feature request for you, Haiku should have away to backup it's customizations somehow, even better would be a way to sync them across devices over wifi. I have 4 iOS devices (2 iphones, 2 ipads) and keeping settings and customization's up to date across them is a pain.
With that a delete and re-install one could recover the settings.
On another note the removal of message popups is great, but I seem to have messages that are showed with no beep, making the chime. I think it occurs when the message was shown while not logged in and and then logging in later plays the chime regardless of no beep. Honestly I think it's incorrect to play the chime at all if the message was shown while not logged in, only if the message was just shown should it chime if shown with beep.