This site is now running WordPress 2.3, thanks to the new upgrade; check out the link for a huge feature list. Of note (and the reason for this post) is the new native tagging system. After trying to get Ultimate Tag Warrior working on this site, and giving up, WP now has it built in.
So, WP users, time to upgrade again. Beware, the database upgrade took a while for my mini-blog here so you majors are going to have some downtime.