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The OP links to a post by Steve Losh[0] which suggests this:

Trust me, you want to learn to use hjkl. Playing a lot of Nethack[1][2] also helps.

[0] http://stevelosh.com/blog/2010/09/coming-home-to-vim/

[2] http://strategywiki.org/wiki/NetHack/Beginning#vi_keys

You mean, like a first person shooter with HJKL instead of WASD?

Kind of reminds me of the old days when I had a really hard time switching from keyboard-only arrow key controls to WASD and mouse in the game Unreal. Unintuitive as hell, but certainly worth it in the long run ;-)

Most FPS's will let you totally remap the keys however you wish. I think I tried HJKL in Quake once, but my fingers never really got the hang of it in that context (plus, WASD puts you in easy reach of the modifier keys, which are better targets for action keys wrt gaming)

I will -- though not exactly only movement based. The foundation for games is being built here http://www.openvim.com Before games, I want to add missing features from Vim, currently visual (block) mode.