Downloading this plugin right now to test. Really, really cool.
Current features include:
* Allows you to not only edit the content and title, but also the Excerpt.
* Allows you to easily turn comments and pings on or off.
Cross-posting this also on Ajax Blog.
Update: OK, so this is REALLY REALLY cool. Edit in place is the future. Editing this right now in the published interface. Could definitely use some additional polish, but really neat.