What's New Control
The release of Sitefinity 3.1. Service Pack 1 included a modification of the CmsManager.GetPages() method. You can now return a set number of pages, as well as sort the pages by a given property.
This allowed for the creation of a "What's New"control. This control simply returns links to the last X number of pages that were updated. (You can set the number of links that get returned.)