Pdt: Would be really nice to have something like "Ligth and Matter" [1] 

free books for Squeak (in the sense of freedom, not price). I hope to 

make some contributions in that sense next semester, from my novice 

perspective.

[1] http://www.lightandmatter.com/

[2] http://www.lightandmatter.com/area1why.html

[3] http://www.lightandmatter.com/article/sneaky.html