Using XML Feeds with Autoblog

I am subscribed to a content service which provides me with XML-based feeds instead of RSS feeds.

Is it possible to use Autoblog with custom XML feeds instead of RSS feeds? I am thinking of creating an addon for Autoblog, similar to the existing addons, which parses the feeds, and transforms them into RSS feeds, before passing them to the plugin.

Is this the proper way of doing things, or is there a more elegant solution?