One of things I wish the wiki editor had and would really like to see implemented is for the editor to lock the wiki when someone clicks the Edit link so that it can't be edited by someone else at the same time. As it stands now (in 1.7) that doesn't happen and so a person may lose a significant amount of work because someone else has edited the wiki and saved their changes before the first person finishes what s/he is doing. It would also be nice if there was a way to automatically update (or save) the wiki when it is being edited -- just in case a person forgets (as I did) to save changes periodically. I lost nearly two hours of work because someone else in my group made a smalll change in our wiki. Teaches me a lesson, but also prompted this "wish list item."
Mike Ryan