I'd like to see some kind of conformation screen before a PM gets deleted.
My members are always complaining about this and I understand them, since it's quite easy to accidently hit 'delete' when all you really wanted was to 'move'.
If not a PM confimation screen, then I think a Trash Can would be good.
Then you would at least be given a chance to move your PM out of the trash if you accidently deleted it.
Pleeeeease add any of the above. It really is needed...