I recommend the community to audit this implementation and to switch to it as a primary impl if it's any decent. Every link should be redirected to it. I can say quite confidently that CL is the best lisp out there today and the way to go forward as the other lisp dialects both sux and are stucked (even clojure; I've made a 5K+ LOC program with clojure and got tons of technical problems as the codebase got bigger).
