Although I've seen people "Vim", "VIM" and "vim" I never really thought about what the correct spelling is. Most times I went with "VIM" since I always thought

Although I've seen people "Vim", "VIM" and "vim" I never really thought about what the correct spelling is. Most times I went with "VIM" since I always thought of it as acronym for "Vi IMproved". But I think you're right with "Vim", since even on vim.org it's spelled like that.