After upgrading to blur6ex 0.2.317 I lost my pretty URLs. They'll be back but too many things are changing now to really keep up with them.
Something the site now does is change the page title (seen in the title bar of your browser) for every post you view.
It's amazing how important this is to Google. In the past week I've received a lot more query traffic, apparently because search terms appear in the page title. Like this for example (about 5 links down).
Using the Google Toolbar in IE I've noticed this site's PageRank has dropped from a 4 to a 2. Not sure what that's all about; maybe the lack of mod_rewrite.