I had a chance to play with Wordpress 2.0 RC3 today. It's not tremendously different from 1.5.2 but the improvements are fantastic. The main thing I love is the new posting page, which adds WYSIWYG support, easy image uploading and the quick addition of new categories. Rumor is 2.0 final will be out on the 26th. Here's a list of the new features. Looking forward to it.