You can now delete convos (it just makes you leave them since a convo can have many participants).
Super experimental.
Edit: Added a "Delete All Trash" button for the poor bastards who moved each PM individually to the Trash folder since there is no mass-move feature.
(Only shows up if you have trash)
so uh, i'm guessing a mass move feature is on the list? maybe an email-style "check the box" system so you can move multiple pms?
edit; so the email check system is actually there. god, i need to read previous posts before writing a reply at 1am.