Short and to the point. Paul Taylor just posted some demos, one of which shows the quadratic Bezier spline used in advanced layout and another showing the organic, spline-based scroller in action. I’ve pretty much decided to write a white paper on the math behind the scroller at some point in the near future.
http://guyinthechair.com/2010/11/tinytlf-updates-and-new-experiments/
Enjoy!
The Algorithmist 