One Page for simpleMultiUser (OnePageSMU for short) is a small plugin which allows multi user page editing but eliminates a need for separate pages for editing and viewing. In normal simpleMultiUser (sMU) configuration, one CMSimple page is prepared for the public, and another one is created for editing the page. With OnePageSMU, there is need only for one page - those who have access level or those who are in allowed access groupw for editing get a link (either textual or an image) for editing.
OnPageSMU needs simpleMultiUser and one of member pages plugin: Memberpages or Register
Current version: 0.2
Download: onePageSMU.zip
Additional info: onePageSMU help
cmb: the links above don't seem to work anymore, so I've uploaded the plugin to the Wiki.