By default wcm8 provides the following different authoring home pages or launch pages when you access the authoring Portlet for first time.
a. Basic Home Page: This is for content authors who only need to create items and who usually doesn't access advanced library explorer
NOTE: To set different authoring templates to display on home page add the following key/value pair in WCMConfigservice i.e. key : wcm.authoringui.homePageTemplates value: Library 1/Template Name:Library 2/folder/Template Name 2
b. HomePage : This is for content authors who need to complete tasks like create items, editing their drafts and approving/recjecting content . This home has a section to view recent acitivity.
c. LaunchPage : You can add or customize the launch JSP