New Ward Calendar (with Google Calendar integration) and Ward Directory
My Notebook (this is amazing and will sync with your mobile device in about a month or so). To try it out, login and go to scriptures or general conference. When you mouse-over a paragraph, you can tag and mark stuff and type in your own notes.
And so on, and so on…
I bounced around on it a little this afternoon and was really impressed! After you log in you can access your ward directory through the tools menu. It's really well laid out and easy to navigate.
My understanding is that once they get the bugs worked out this will replace the main site at LDS.org.