In the following days we all will be enjoying this new twitter interface. The promotional video is great, and it has some eastern eggs, like the rock album is from a group named: Freelance Whales.
Twitter New design
You will now find @mentions, retweets, searches, and lists just above your timeline in a black bar, creating a single, streamlined view on the left of the screen. On the right, you can see the features you are familiar with, including whom you recently followed and who recently followed you, favorites, and Trending Topics.
View photos, videos, and other media content
Now, it’s easy to see embedded photos and videos directly on Twitter, thanks to partnerships with Dailybooth, DeviantArt, Etsy, Flickr, Justin.TV, Kickstarter, Kiva, Photozou, Plixi, Twitgoo, TwitPic, Twitvid, USTREAM, Vimeo, Yfrog, and YouTube.
Discover related content
When you click a Tweet, the details pane shows additional information related to the author or subject. Depending on the Tweet’s content, you may see: @replies, other Tweets by that same user, a map of where a geotagged Tweet was sent from, and more.
Mini profiles
You can click a @username to see a mini profile without navigating from the page, which provides quick access to account information, including bio and recent Tweets.
I believe we already had this function working from several months ago.
Rollout timing
These changes will roll out as a preview over the next several weeks. During the preview, you’ll be able to switch back and forth so you have time to grow accustomed to the way things work. Eventually, everyone will have the updated version of Twitter.com