Dropping the folder into /mu-plugins/ does nothing, as you would expect (as far as I know, that folder looks for files, not directories. Copying rsscloud.php into /mu-plugins/ breaks the installation. It's looking for the files in the rsscloud directory.
When I copy all files directly into the mu-plugins directory, it works. But this is a messy way to manage that directory. I've tried changing the paths in the rsscloud.php to look inside the rsscloud directory but I must be doing something wrong as it's giving me a blank screen across the entire installation.
Could you make this compatible with the new method of activating plugins site-wide. I don't see why we've got this new and very useful feature but plugins are still be developed that work in one or the other. Donncha's wp-super-cache is a good example that works using either method and can therefore be kept up-to-date easily.
Thanks very much.