ScribeFire would show up as a small book icon in the status bar and if you click it, it would provide you with a rich text editor. Almost all the formatting that any web based blogging rich editor provides is already here. Moreover, there is a provision to add youtube videos directly (eehaw!!!)….btw, I am still to learn more about it.
More info later….gotta work now…tata.
PS: You need to add your blog to ScribeFire and it has an easy click-next wizard to do so. It automatically detected my WordPress installation pretty easily. I am pretty sure that others would also be a similar piece of cake.