[wp-hackers] Revision Control in Post?

[Andy Skelton]

On Tue, Mar 18, 2008 at 3:09 PM, Akeda Bagus <gedex.gsoc at gmail.com> wrote:
> Is there any plugin for revision control in a page? Drupal and Wikimedia
>  have such system, so author can revert to some version or show the diff. Is
>  it ok to propose this system for GSoC 2008?

Only one thing comes to mind:

http://wordpress.org/extend/plugins/blicki/

Cheers,
Andy