SetucoCMSR is a project mainly written in RUBY and JAVASCRIPT, it's free.
SetucoCMS made by Ruby on Rails 3
This is SetucoCMS(http://github.com/densetubu/SetucoCMS, made by PHP) made by Ruby on Rails3. Design documents => https://spreadsheets.google.com/spreadsheet/pub?hl=ja&hl=ja&key=0AsZ5eShbQ7T_dDJRRm5pdkJUUDlHQUVobnhPckFnWWc&output=html