The way I plan this project it is to have a tutorial for those who prefer reading or to look up things with lots of explanations and exercises and a practical part (a program) like the emacs or vi tutorial for those people that prefer interactive learning... The prob is that I only have til end of 07.2005! to complete everything. So i really have to get started from net week onwards. (See this node for extracts of the tutorial, so you can comment on them or if I hope this will never happen some code might not be good or working to tell me so). Of course any help is greatly appreciated.