WordPress for Windows Phone has released version 1.2.
This version is full of new features and fixes, including Landscape Editing, UI Improvements, New Language Translations and many bug fixes, including:
Better support for post pingbacks in the comment view.
Fixed comment submission date from being changed when moderating.
Preview now works for drafts, scheduled and private posts/pages.
Prompt added if the back button is accidentally tapped while creating a post.
Download and info: http://windowsphone.wordpress.org/2011/08/03/version-1-2-now-available/