This is what I was looking for a long time! Thank you.
As vim is not learnable in a week-end. Understanding the basics progressively (like you do with a language) seems a nice approach.
"Your problem with Vim is that you don't grok vi."
http://stackoverflow.com/questions/1218390/what-is-your-most...
For moving beyond the basics I suggest this book: http://pragprog.com/book/dnvim/practical-vim
For vimtutor it's introduced in the first part http://benmccormick.org/2014/06/30/learning-vim-in-2014-the-...
The most disturbing thing when learning vim is the fact that shortcuts actually "means" something rather than being near your fingers. Like the old flashioned way to use shortcuts in RTS games vs grid modes.