I recently bought "Cocoa Design Patterns" by Buck and Yachtman. It occurs to me that it might be useful and interesting to re-implement the patterns in MacRuby. -r -- http://www.cfcl.com/rdm Rich Morin http://www.cfcl.com/rdm/resume rdm@cfcl.com http://www.cfcl.com/rdm/weblog +1 650-873-7841 Technical editing and writing, programming, and web development