FunOS - Mostly functional (programming) OS in design, and fun to do system programming in; all policy code in kernel to be in Scheme. To support multiple APIs, and be runtime extensible: replace parts of system on the fly and, within security constraints, by ordinary users.
Lisp-based OSes - History, considerations for operation, list of projects with links (some updated, some not).
Thoughts-on-a-LispOS - Brief description, with careful wish list outline; wiki.
