Ask HN: you've got a few weeks of free-ish time, what OSS project do you try?
you are ninja-esque in your .net skills, but have been moving to more interesting tech (python, nosql/couchdb, erlang).
current candidates are (in no particular order):
bespin, couchdb
what else? Clojure-CLR might be interesting to you: http://github.com/richhickey/clojure-clr I would suggest, if you are not very experienced in it, unix (things like shell scripting, awk, etc). let me clarify - i meant contributing to an OSS project.