Links:

LettError Type & Typography
RoboFab UFO manipulation, FontLab scripting.
FontLab Font Editor
TypeSupply Prepolator, scripts, cool stuff.

Superpolator in use:

TypoNine

Development tools, with thanks:

RoboFab UFO manipulation, FontLab scripting.
FontTools
PyObjC
Python
Effbot

Ordering..

Available today: check our options..