Can the toolbars be hidden except for AcroButtons (using full-screen mode for instance)?
Yes you can and this is a great feature. You can put a toolbar on your full screen documents. To do this you MUST execute a toolbar button definition after the document has already gone into fullscreen mode. The best way to do this is to move the bottom part of the button definition script, the part that does the actual button creation, into the Page Open Action for the first page of the document. It also works if you just move the entire button definition into the Page Open Action.