TrackBack auto-discovery is disabled for intra-blog links. Probably a good idea, but that doesn't mean that intra-blog updating should not take place. It should take the form of automatic discovery of references to self, and of forward links. Pages with backwards or forward references would make a lot of sense for building coherency of blog entries, bliki style.
They should have their own template tag, since obviously this is something else than other peoples TrackBacks. Nonetheless, a link to that page would look great right next to the comment(n) and the trackback(n) post notes on the default template.

Google is evidence that this feature would beat topic based coherency features.