I'm a Wordpresser, so this was one of the first apps I went after when I got my first Android phone. You can register more than one blog on it, Wordpress.com or self-hosted blogs work. It allows you to read, post, and comment - albeit without the full functionality of the main interface. But it IS a mobile app, after all. My one gripe is that you have to manually refresh every section on login, but other than that, this is a slick way to work on my blog without having to use the browser.