[Apocalypto]

I'm not sure how alive Marvin still is with Kris's newer projects but just in case there's a spark left it'd be nice to be able to create "smart" collections that populated based on metadata (tags).

The interface would be simple, a simple text input box that let the user type a comma delineated list of tags and then shown like the normal collections do except with a sprocket instead of a plus. Bonus points for removing the superfluous red bar.