This is done with Blogjet that promises wysiwyg publishing for Blogs.
Shaan Hurley found it and mentioned on his blog in the article Blogjet Rocks
I'm trying it for 30 days to see if I like it, so far I do!
It makes these things much easier:
- Positioning and sizing images and text in a post
- Text Colour and Format.
- Add Bullets!
You can also try it by downloading from the Blogjet Website.
UPDATE: See this post