If you’re using OS X Tiger and you’re using WordPress for your blog, you need this.
It’s a Dashboard widget that posts to your blog. I downloaded it about 2 minutes ago, and I’m writing this post with it. Very cool, very easy, very quick.
Some things obviously could be added, like spellchecking, multiple categories, etc. etc. But overall, very nice for a brand-new still-in-beta piece of software.