@jeffro - Tabs aren't really the answer. The last thing we need is to encourage plugin authors to go tab crazy by increasing the frequency of tabs in the admin UI. Like the fullscreen experience, tabs at some point gets cumbersome.

(With a 20" screen, you're probably tired of reviewing drafts via the post editor due to WordPress's fullscreen approach.)

The best scenario is stripping down the post editor screen to establish new content creation habits, but we know that isn't going to happen unless WordPress wants to stop supporting custom meta boxes.

I think the next best thing everyone can be happy with is putting the editor and all meta boxes in one column and add a new shortcut menu in the second column. You'd then use the shortcut menu to move up and down the page instead of scrolling.