Installation of the navigation skinobjects is a breeze - thanks to the Private Assembly model of DotNetNuke the skinobjects can be installed using only the mouse.

The Page Administration (Admin>Pages) was improved a great deal by using a RadTeeView control instead of the normal listbox. Moving a page in the portal hierarchy is easy using Drag&Drop. The treeview also has a context menu that helps with other tasks like moving a page up or down in the list.

The default HtmlEditor Provider was replaced by RadHtmlEditorProvider. Now instead of the FreeTextBox control, you can use RadEditor to edit the content of  HTML modules, FAQ modules, or any other module that uses the DNN HtmlEditor Provider. With features like Dockable and Floating Toolbars, Multilevel Undo/Redo with Action Trails,  New features for pasting from Word, Custom Keyboard Shortcuts, Custom Context Menus, Use External CSS Files, System Modules, Content Filters, Context Menus on Gecko-Based Browsers, Full-Screen Mode, and many more, you won't be disappointed.

You can check out the features of each control on its page.