The first thing I noticed is that they're moving the content pane to the right, and moving stats/metadata to the left column. I remember when Twitter first had

The first thing I noticed is that they're moving the content pane to the right, and moving stats/metadata to the left column. I remember when Twitter first had the metadata pane on the right. It was unusual, and a lot of sites follow suit -- especially with Twitter Bootstrap, which defaults (in their templates) to content-on-the-left. I wonder why Twitter moved content to the right -- which seems more traditional.