Google Docs has a new boundary inspired by Google+ and you can try it here. The interface is cleaner and there's a bunch of white space. You'll also find the familiar red buttons, the gray buttons, the new scrollbars and the label less search button.
The new boundary looks better, but there's a lot of white space that could be used to show more information about the files. The details view is no longer obtainable from the interface, but you can enable it in the old UI and the setting is preserved.