You could have downloaded Kensington TrackballWorks 1.3 for Mac from our software library for free. The software is included in Developer Tools. This free software for Mac OS X was originally created by Kensington Computer Products Group.
From the developer:
TrackballWorks™ allows you to program your Trackball to behave how you want it to by customizing the functions assigned to each Trackball button.
The result is a more productive and truly personalized computing experience. Now you can set your preferred functions or keyboard shortcuts for each trackball button or combination of buttons, adjust the pointer speed and acceleration, and so much more.
You may want to check out more software for Mac, such as JBuddy Bot Builder, Objective Basic or Pleinpot, which might be related to Kensington TrackballWorks.
Device Assistants
Device Assistants