They still don't support it, so here's an attempt to make that happen with the newly launched API. I wish it would at least expose the time a profile was last modified but that's probably like asking for them to publish emails and mobile phone numbers too. If you're daring, just login with your Facebook email/password. I don't know how/if other RSS clients handle HTTP authentication, but NetNewsWire does it very well.
Just the basics. What would be useful? Photos? Wall postings? Thanks goes to Ken K. for some help with the login procedure.
Update: the script is broken so I removed the link to it. I suspect the 'News Feed' feature is 10 times more useful anyway. See comments for more.