Some good news!
I was at the Digital Life show at the Javits in NYC tonight, and I managed to talk to the product manager of the reader. He said that they are actually working on a hierarchal listing in a firmware upgrade. There should also be some more interesting developer tools for creating the BBeB format sometime in the near future, as well as a few more interesting things. They do read this forum it seems, so yay.
I have to say I am really looking forward to a firmware update.