a) you consider small talk a language for kids
or
b) this is a complete and dynamic development environment with live debugging etc.?
I wish the OP best luck with the second, but I think he's not quite there (nor he needs to be, since the very nature of this project seems completely different from, say, squeak)
Offtopic, but Smalltalk was in fact meant to be kid-friendly. Modern Smalltalks are different beasts, though, with all their enterprisey bullcrap. Squeak is an attempt to correct that.