Does the contour have any value as a rhetorical concept? A rhetoric of contours might do considerably more than print-based conceptions to explain how hypertexts work and how we can make them useful. In particular, the idea of the object-event or contour might help us derive a better understanding of the semiotics of links, a subject on which more conventional approaches shed little light.
These might be relevant questions...
Or on the other hand, maybe this doesn't interest you.