How to make the pointer glide on Mac OS X?

I have tried to find a solution to this problem for years now. There are three answers to this question, and none will make you happy:

1. Create custom touchpad drivers yourself

   Sadly, this is the only sure way at the moment to get inertial pointer on OS X.

2. Create an incentive for somebody else to create custom drivers

   Send emails to BTT, Overdrive, etc. Comment on blogs that talk about inertial pointer on OSX. Talk about it on Twitter. Upvote posts about it on StackOverflow.

3. Buy a trackball

   Trackballs have natural inertia. You can flick the ball and it will keep gliding as the ball decelerates.

PS. Here's a way to try what inertial pointer on OSX would feel like.

There is a bug in OSX 10.8 that can trigger inertial-like behaviour.

1. Grab a window by touching the window header using three fingers on the touchpad.

2. Move the window just a bit while keeping all three fingers on the touchpad.

3. Now, use a fourth finger to flick the window around.