It seems that Google Docs now has a publish to blog functionality, including the option to update a previous blog post when you republish the document (which I was
kvetching about earlier).
In Google Docs there is a publish tab on the right hand side of the screen:




The downside here is if you have multiple blogs -- you have to change the blog settings each time. Otherwise, cool.
With all the good stuff going into Google Docs, I wonder if it's going to be possible to ditch MS Office all together in the not-too-distant future.