I spent some time remembering all those times I used a number of touch typing tutorial games (e.g. TyperShark), when I started playing Icarus Proudbottom Teaches Typing. (Here's a link to the game.)
It's a cute educational-ish game with a nice story/background. You start off typing some stuff on the screen, and the text tends to end up interesting and rather curious.
Fun way to spend the afternoon, but now I think can relax my arm muscles, since I'm done with the story. Also annoyed with how I can't get past the super-secret levels yet. In time, though. In time.