Twitter just got a new makeover
now You will now find @mentions, retweets, searches, and lists just above your timeline – creating a single, streamlined view on the left of the screen. On the right, you can see the features you’re familiar with, including whom you recently followed and who recently followed you, favorites, and Trending Topics.
Looks more interactive and simple, richer and faster interface.
No redirections to the site to view the media content they can now be directly viewed on the right side as you click the arrow next to the tweet along with the information of the user and his/her recent tweets.
To get the newtwitter activated you need to tweet with #newtwitter and then you get a bar on the top asking if you would like to change to it
However i find the right part is a little wide and a lots of space is wasted.