Pretty neat. Even though I've been using Vim as my only editor for years I learned a new movement command from lesson 1. (I didn't realize you use ^ to go to the beginning of text on a line. I always use 0 and the w forward. )<p>2 suggestions though:<p>1. I felt like the randomizer kept giving me questions I had just answered correctly multiple times. That was a little annoying, but probably is less noticeable when you are in sections where you are learning new things.<p>2. It only accepts d2w for "delete 2 words" but 2dw is also correct. I actually think 2dw makes more sense since it is consistent with 2dd to 2yy which are much faster to type then d2d.<p>Just typing that made me feel bad for Bram Moolenaar because vim users must be impossible to support.