Cool idea, but wouldn't it make sense to remove the letter J from the most used letters?

If you don't use that letter for Vim it drops from the top 8 all the way to the bottom of the frequency chart (assuming you only type English). If you than map whatever J does in Vim to a more frequently used letter your typing speed should go up.

Alternatively since J seems to be used mostly for navigation (not sure, I don't use Vim) use the d-pad to do that instead.

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> After I upgraded my gamepad to the DualShock4, I realized I could make diagonal inputs relatively accurately. Integrating diagonal inputs would reduce the number of more complex inputs required thus increasing speed.

Any plans to do that?