To make (at least) IntraWikiing more enjoyable and useful there are a some ideas to be discussed:
E.g. a WikiBrowser could overcome the annoying mode changes, involved in even such trivial actions like typo corrections on a longer WikiPage. Have you counted the number of keystrokes and mousemovements (even if you use the Find-Dialog) to accomplish this?
Currently I'm experimenting with an edit-only mode, where a key-macro lets you jump from one edit form (of a WikiPage) to another, depending on the current cursor-location within a Wiki Link Name.