Is there a way (plugin?) to restrict a user to being able to edit just one page?

We use wordpress like a CMS and would very much like to allow users to have a “homepage”. Ideally they’d be prevented from mucking up the whole site.

Is there a simple way to limit users editing rights to a single page?

I’m currently using the Members plugin to do other permission-based stuff, so it’d be great if a solution could either neatly augment this, or replace it entirely.

Bonus points for automatic creation of a homepage when a new user is created.

UPDATES: I should clarify that these pages need to be confined to a specific area of the site (i.e. all children of the same page). Also, after speaking to some users it seems that they’d find it useful to create sub-pages branching from their home page.

A base WordPress installation probably won’t do what you want it to. You could set up a multi-site instance and allow users to have their own ‘sub’ site, or use something like BuddyPress or Mingle that has a user profile feature.