Do you use the FeedBurner service? If you do and would like to automatically change your feeds URL, this plugin is for you. Previously, changing the address of your feeds involved making changes to the configuration file, but this plugin makes it easier.
You can read more and download from Adam Tuttle's blog.
Brian Rinaldi, well known blogger at Remote Synthesis has moved his blog to use Mango. He talks about his experience in this post: