Well, I just finished moving my personal blog (previously hosted at vampiroz.org) here to Posterous. It took me a while as I had to write a (Python) script for migrating all comments and images using Posterous API. Posterous has a Wordpress importer but it doesn't import comments yet, and image support is somewhat limited. Also I had to make some formatting rearrangements to make the post texts look nice.
But it's finally done. Geez, I can't believe I won't have to maintain my own Wordpress anymore, I'm so happy :)