Those of you who follow me on Twitter already know that my initial work on updating this site from Drupal 6 to Drupal 7 has been... problematic.
The crux of the problem is this: my site relies very, very heavily on a module called Content Templates, which allows me to customize various content types Drupal uses so that I can do things like create context-sensitive menus (i.e., only show a menu for Help Desk when you're viewing a Help Desk comic) and add things I think are missing (i.e., provide navigation links to the top as well as the bottom of a node using the book content type).
I have an add-on for Drupal 6 that lets me track how many of my modules are actually supported by Drupal 7. Content Templates listed as supported, and the add-on even provided a link where I can download the Drupal 7 version...
... which meant I never actually visited the add-on page, where it was announced that Content Templates was essentially abandoned after a few developers releases because D7 changed the way it rendered pages and Content Templates no longer worked.