I was reading through some resident blogs, and 2 things catched my eye that I hadn't seen reported anywhere else.
Max Case reported on some screenshots he stumbled upon, that appear to be a new login sequence. They look like screenshots from a animated login screen to me. Very cool.
Other thing I read about is that apparently when SL is down for a update, the frontpage screenshot changes to a SL version of the famous ape scene in 2001:A Space Odyssey. Look at it at VTOR