Markus sent us a comment that he has a new version of the Akismet module for Drupal 4.7. Since I have yet to put up a "latest comments" block on my site, I've reposted his comments here:

Hi! Just wanted to mention that I have just released version 1.1.0 of the Akismet module for Drupal 4.7. It's been just 8 days from 1.0.0, but it was then when I realized that the moderator queue had to be improved to allow operations against multiple items. It also includes an experimental set of options to prevent DoS situations caused by certain spambots. That's it, happy blogging!

I took a look at his site, phpMiX.org, and found that he also made a few minor changes since his posted comments. As of this writing, he has released Akismet module for Drupal 4.7, version 1.1.2 . More information including a changelog can be found at his site.