No, the included demos have examples for a analyzing Ruby (ActiveRecord) and Java. There was a paper a while back about moldable development where they showed a Python debugger.
Yeah, I’m going to be giving this a spin pretty school to see how working on Ruby is like in it. It also gave me the idea of building a Swank client in smalltalk and maybe a McClim backend, but it’d be hard for me to give up emacs at this point.