Couple points of interest.

There's no "Activity Stream" now, which means I can't actually see what's "new" at a glance--or at least I haven't found out how to.

There's no "mouse-over" to see preview text of new posts on threads with updates.

The "personal" blocks with avatar, etc--are almost non-existent. Likewise, there's no clear "banner" area with my own personal info, link to PM's, etc.

And if there is a gallery, I haven't found out how to easily access it. I miss seeing random gallery pix on the front page.