New and improved profiles
The most recent update to Twitter for iOS adds Facebook-style cover photo as a backdrop to your Twitter avatar.
Home news feed
Every time you open up the Twitter app, your timeline starts you off at the last tweet you read. Tap the Home button to quickly jump to the top.
Discover more content
The Discover tab shows you relevant stories (based on your connections), an activity stream, trending hash tags, and more.
Connect with your Tweeps
The Connect tab shows you your mentions and helps you keep track of when others retweet or begin following you.
Compose a tweet
With the global Compose button, you can fire off a tweet from anywhere in the app. The interface then makes it easy to add pictures, mention other users, and geotag your content.
Snippets from partner sites
Twitter for iPad expands tweets inline and shows snippets of content from links to partner sites.
Expand a tweet containing a YouTube link to see a thumbnail of the tweeted video.