I've been messing around with Inferno for a while (link below for completeness). I would love to have, say, Clojure, Python or something else with a sizable set of built-in libraries running on it, but (at least where Inferno is concerned) I had a lot of trouble finding anything to bootstrap that kind of environment (Inferno uses the `dis` VM, and there is a GSOC project that sort of gets Java running around that, but, again, no readily usable stuff).
Notes here: http://the.taoofmac.com/space/blog/2014/05/04/2230#diving-in...