For those wondering what the Temporary Post Used for Style Detection is doing on my blog, it's an artifact of my installing Windows Live Writer on my laptop. Live Writer generates the post to detect the CSS styles in the blog and sometimes is unable to delete the post. The bad news is, I can't either. My Typepad view of my blog doesn't think the post is there, so I can't flag it for deletion. Apparently 23,000 other bloggers are in the same boat.
Supposedly it's fixed in the forthcoming version 2.0. Let's hope.
(By the way, I figured out how to get rid of it from the front page: I republished my blog.)