In the new version of Acrobat (just became available), the page control features need to be returned.

In the old version, the page controls toolbar could be docked at the top or made so it would appear at the bottom of the page when the mouse went near it. That option was incredibly useful, please bring it back. It allowed an easy single click to change how the page was viewed, either by making single page view, or page scroll, and also by allowing a quick button to view page thumbnails.

Also, in the new Acrobat, there doesn't appear to be a pan function, please bring that back too.