I've had this as my wallpaper for the past few months on both my laptops (work and personal--although I recently changed one to the Emacs equivalent[1]). It's been super-handy. Before I open Vim, I'll scan the wallpaper to see if I've been forgetting something useful (f/F/t/T are probably my favorites), and make an effort to use it while editing. Also while editing, if I'll sometimes have a weird task come up, and wonder what the best way is to move my cursor from point A to point B. I just tap Super-D, and skim through the wallpaper to find the best command.
And guys--don't forget that Vim is a language. All the movement commands here combine really well with "verbs", like 'c'hange, 'd'elete, 'y'ank, 'v'isual mode, etc. Sure, the wallpaper only covers 30 or so commands, but if you take the time to memorize those four verbs, suddenly you know 120 commands.
1 - http://punchcard.wordpress.com/2010/10/09/emacs-movement-sho...