Hi. 
As I get it, full screen mode can only display text. Would it be possible to allow a full screen mode for viewing the corkboard? Since the main idea behind a corkboard is visualizing your project and seeing the whole picture at a glance, I think a full-screen corkboard might be helpful. Even more so on 13-inch and 11-inch screens. I currently emulate it by clicking OPT+CMD+B (hide Binder), OPT+CMD+I (hide Inspector), and Hide Toolbar.
If this feature does exist and I’m getting it all wrong I apologize! Searched the manual and forums and couldn’t find an answer.
Regardless of this nitpicking, I want to stress how wonderful Scrivener 2 is! I’ve been working with the NaNoWriMo version since Oct 25 and I absolutely love it. Scrivener is why I switched to Mac.
One thing you can do is hide the binder, inspector and toolbar, and then make the corkboard fit the whole screen. Then save this setting as a layout (View > Layouts > Show Layouts, click on the “+” button). Then you can switch to this mode any time you want by calling up the layout (you’ll probably want a layout for returning back to your preferred view, too, with the binder etc).
As for a proper full screen mode, I’m waiting to see what Lion brings - it looks as though Apple are bringing full screen to all applications.
All the best,
Keith