Access denied

I tried to simplify the menu, which likely caused this.

Can you be more clear? What path did you visit? As which user? What role does the user have? What permissions does that role have?

I think the issue has to do with permissions. In the current scheme, you need to have BOTH 'edit mysite' and 'view all mysites' in order to view your personal page.

This fix should solve that on beta5, in mysite_menu(), line 129:

Change from:

    if ($create && $user->uid == arg(1)) {
      $owner = TRUE;
    }  

To:

    if ($create && $user->uid == arg(1)) {
      $owner = TRUE;
      $view = TRUE;
    }  

This gives the necessary permissions in the case where you are looking at your own page.

This should be fixed in HEAD. Since we seem to be about 8 hours offset, you can test that while I'm sleeping :-).