LutinCapuche Blog has developed a plugin called FlogMaker that changes your blog to a Flash-based blog. You can see a demo of a Flash blog on the site, and manipulate the background, colors, and more and see the results. It works like any other plugin, where you just upload and activate.
It’s an interesting concept. It’s hard to tell whether it is user-friendly or not because the demo is in French, so I found myself struggling to figure out what was what because of the language barrier. I am not sure this will catch on, though, since Flash sites are perceived to be non-accessible, and I’m not sure if this type of site is more accessible than any other Flash site.