When I introduced computers to my kids, as like many other kids they started with games on the net. Mostly playing simple games like tom-and-jerry chase, bob the builder etc. My mother tongue is Tamil and so I came across the kids section of the Tamil Virtual University site.
Then, I started experimenting with Squeak and EToys. Later on, I moved to use Scratch. After some time, I learned about GCompris, Tux Math, Alice, Robomind etc. During that period, I still used the non-open-source OS that came with my laptop. GCompris version on that OS does not include all the activities -- to encourage the usage of open source operating systems! So, I looked for operating systems for kids. I've started using the following operating systems.
Recently, I came to know about OpenSolaris in Tamil -- one of these days, I'll try a LiveCD. Need to check if there is a Tamil version of Belenix out there...