Yes, I can read the FAQ on the site too.
If Qimo is a small and lightweight system, I would consider it for the twins (2 years old, but they play tetris and pacman).
I like GCompris, the educational package, and the dock in Qimo is genius. They'll just have to click on an icon.
Edubuntu seems like a great idea, but it's still Ubuntu, and Ubuntu is uuuugly and bloated.
So I might give this a try (cap) some time.