I do like the new rich-text editor, and how it’s not trying to be TOO rich (no fonts or colors, just bold, italics, strikes, lists, alignment, linking, images and emoticons.  I also like the new AJAX categories panel which lets you add new categories right on the fly, even suggesting categories from what I guess are other blogs on wordpress.com.

Overall, my first impression is it’s really nice, and probably something for someone who has outgrown blogger.com and not yet at the stage where they would want to host their own blogware.