I've decided to re-release ElastoLab as a freeware program. You can download it from here:

http://www.simberon.com/ElastoLab

ElastoLab is a program for kids that lets them play with sound, images and motion in a simulated physics environment.

If you like the program, you have the option to make a donation to the project through PayPal, but it's not mandatory.

I will soon be releasing the source code as many people have asked for it. There are some neat techniques and some custom widgets that you may find interesting.

ElastoLab was developed using VisualWorks Smalltalk and is probably one of the most unique products I've seen written in Smalltalk.

Have fun playing with it. I sure had fun developing it.

I'd be happy to answer any questions by e-mail to david@simberon.com.