My primary interest is to develop haptics based tasks/games for psychophysical experiments. I would like to know is there a easy way to implement state machines in latest release?

For state machines and many other useful tools, we recommend that you review the Boost libraries:

www.boost.org/doc/libs/?view=category_State

Has anyone tried to integrate Boost lib with Chai3d?.
One example of implementing state machine using boost would be of great help.
Thank you

Just like Qt, the Boost library are commonly used by developers using CHAI3D. State machines are important features when developing applications. To keep the framework light weight, we have not included Boost in the examples, but anyone can easily do so in their application.
Thanks for your comment.