A loyal reader sent in a snippet about Bitty Browser, what he calls Picture in Picture for the internet. You can create your own Bitty Browser for inlining things like OPML lists:

While it’s still under development, in the future or right now this could be a very useful tool for embedding virtually any kind of content into your blog posts, or elsewhere. The author has already created quick links for Technorati, Google, Bloglines, Flickr, Digg, Web pages, and other common rich media applications.