> I admit, for various reasons I thought about writing such an 
> environment in 
> Java, actually, writing a Self-like language in Java which 
> then would be 
> the language to code the world in.  But Squeak might be an 
> alternative, at 
> least for a prototype.

Stefan, did you see my post about http://spair.swiki.net/21 ?

I hope that someone might take the initiative and use it to create a
complete Self implementation in Squeak.

- Stephen