11. User can map their domain & pick a primary. (Can do more than one.)
12. Super Admin can also map domains without visiting that site.
13.
14. Pulls in all the settings for a site that are under the Settings menu, plus these bonus extras. It's a really long page of menus.
15.
16. Great for making minor chages to the same theme on different sites.
17.
18. Adds a network-wide option for Supper Admins under Super Admin -> Options menu. User gets way more privacy. Admins & Super Admins can have super-private blogs.
23. Logged-in users can add themselves to my site if I place the widget in the sidebar to let them. The Super Admin can also choose to add uses to specifc sites on signup.
24.
25.
26.
27. Does not show plugins in the mu-plugins folder. Woot!