I'm one of the coders who worked on the Overdrive 2 demo (although not on the reverse engineering that resulted in this document). We're going to release more follow-ups about the development of the demo.

I'm currently working on a write-up of the polygon to tile drawing routine used for the fullscreen 3D scenes.

I'm not sure about the time frame yet, but they will be posted at http://www.pouet.net/prod.php?which=69648 and/or http://www.pouet.net/topic.php?which=11035.