I just installed the Performancing.com Firefox Extension and writing this post to see how it works.
It’s an extension that lets you hook up to various blog platforms (blogger, hosted and custom Wordpress, livejournal, typepad, moveable type) and post to them from Firefox itself, ratehr than actually visitng the site. Handy for those inspirational moments when you don’t want to go to the effort of actually navigating to you’re admin section, heh.
It comes up with a little pencil and notepad icon on the status bar at the bottom of FF 1.5 and once you’ve added your account/s, you jsut click on it and start typing. I guess we’ll see how well it does it’s job when I submit this post 
Looks pretty slick so far though, nice work Nick and Jed!