I think a another link for "revisions" next to "edit | flag" would be useful for those over 2000 rep who need a quick look at the revision history.
(I'm too lazy to keep typing in "revisions/id/list")
Couldn't you just click the TimeStamp on the edit? It'll take you to the revision list.
It would be nice if questions which haven't been edited had a link to that somewhere. ( They currently don't )
I don't think it is really required on most questions/answers, but it might be a good idea from a usability standpoint.