"Today, we’re releasing our Blogger Post Gadget for iGoogle. Now you can edit and publish posts directly from your custom iGoogle homepage, making it even easier to share your thoughts with the world."

http://buzz.blogger.com/2008/10/publish-to-your-blogger-blog-from.html

that thing was in blogger in draft before:
http://bloggerindraft.blogspot.com/2008/06/new-feature-posting-gadget-for-igoogle.html