Simple History by Pär Thernström is a plugin that shows recent changes made within WordPress.
Users of the system can see what articles have been created, modified or deleted, what attachments have been uploaded, modified or deleted, and what plugins that have been activated or deactivated.
See what user who has created, added, modified, edited or deleted/removed a page, a post or an attachment.
All changes are also avaialable as a RSS feed so you can keep track of the changes made via your favorite RSS reader on your phone, on your iPad, or on your computer. Or any where you like.
Useful to have on websites where several people are involved.
More info and View Simple History in action video on plugin homepage: http://eskapism.se/code-playground/simple-history/