Hello,
a *simple* thing to add in, but it *would* be something that could be considered, if we could cache the diffs in some manner, otherwise this becomes a real performance hog.
Caching diffs ain't that fun. The interesting approach to this problem would generating intermediate diff, that could be edited incrementally, revision after revision, then displayed. But still, it is a eye candy, that requires quite a lot of resources...
Doams