Control how many revisions are stored for each post type.
Add Anchor.fm oEmbed support to WordPress.
Allows you to point WordPress objects (posts, pages, custom post types) to a URL of your choosing.
Store WordPress session tokens in Redis rather than the usermeta table.
Deploy plugin updates to WordPress.org's plugin SVN.
Remove the need to run the HeadSpace 2 plugin while still outputting the data it stored.
In WordPress, redirect a chosen slug (by default, "latest"), to, well, the most-recently-published post.