Tim,
Thanks for the comment.
Regarding number 2, as you say, "not really finished yet." But interesting.
Regarding number 3, I would be very interested to hear more about OU's oucontent module.
I think my reply to number one is pretty well articulated in the original response, or any of the numerous posts I've made in the last 3 years expressing discontent with, or befuddlement with the Lesson activity's seemingly nonsensical settings and configuration. If I'm wrong about that, lemme sum it all up, and repeat myself: "Lessons are horrible, and I wish I didn't have whole courses built out of them."
After my post above, I did exchange some messages with the people in charge of the Book module development. I proposed the idea of a separate activity called an Interactive Book that would accomplish essentially what I outlined above. Their response wasn't encouraging, and mentioned that the question of including that type of functionality came up during the Book's development, but was removed in favor of straight content presentation.
I don't want to get too pedagogical, but that attitude severely hampers learning by limiting student-to-content interactivity. The Book is clean and easy to use, and presents information very nicely. But presenting information is not teaching. If there was a way to add interactivity, it would be a powerful teaching tool.
Again, I don't have the knowledge or the manpower to do this myself. But I figure if I keep being annoying about it, someone somewhere will think it's a good idea. I might write up a design document at some point as a bump.
Thanks again...