I promised myself I wouldn't do it but I have. I've modified the layout to suit my typing style better. And to make it easier for Gentoo users, I have made some ebuilds for Colemak and my slightly modified version: Culemak.
Lesson 5 brings 'p', 'l' as well as all the home row.
Current progress: Lvl 4, 134 cpm, 26 wpm, 88% accuracy; working on Lvl 5.
The perils of upgrading TWiki on Gentoo.
One of the really cool things about Gentoo is it's webapp-config tool that allows you to run concurrent (or slotted) installations of different versions of the same web based application. For example, from one single instance of Apache, you can run numerous virtual hosts, each with a different version of TWiki.