The multicol goodness works very nice with print layouts. By that I mean it works as you would expect. The only glitches I've found are related to very long unbrakeable text. But that is not their fault anyway.
Come on, give it a try. I have created a print stylesheet to accompany this drupal theme. It hides all web-related elements, leaving just the header and content proper. You can see the behaviour by doing print preview or by simply printing it, but please save the dead trees. If you want to see the behaviour across multiple pages, go to my Relations, SQL, views, algebra or how to cook that broth post. It should spread over a couple of pages.
Kudos to the mozilla guys.
