Multisite proposal

I’ve put up a proposed patch for adding multisite capabilities to WP.
It’s mor of a proof of concept than a full-blown solution. I just updated the wiki ( http://wiki.wordpress.org/Korgan/MultiBlog ) and you can get it here:
http://lingo.com.mx/~ruben/index.php?p=46
Maybe this is not the way the development is going, but I haven’t found any code, so i just posted mine 🙂 please comment.