On the orgmode.org site this thing is called "Org mode" while on worg and in the papers on literate programming with org it is called "Org-mode" with a hyphen. On the email list it is commonly called "org-mode" (lower case o, hyphen) or just org.
Is there any consensus about the proper name by which to refer to [oO]rg[-]mode in a formal context? Tom
