Twitter is rapidly adding new features. Recently they have announced following mobile and web updates.
Send a Tweet to someone at Email:
You can send tweet to someone from Twitter web.
Expand a tweet, Click More > Email Tweet
Tweet sharing feature to email is rolling out to all users slowly.
Twitter have updated mobile apps for Android and iOS:
See headlines and photos: Now you can preview photos and article summaries without a tap in Discover and search results. This new design for mobile brings the content of each Tweet front and center, so you can easily enjoy the view.
Discover popular Tweets: Find out what’s popular among the people you’re connected to in a simple stream of Tweets, like Discover on twitter.com. Just tap “View all Tweets” to see a continuous stream of news, photos and other stories shared by the people in your network.
Search for a new perspective: In search, photos from relevant results also appear right at the top of the stream so you can see what’s happening from multiple perspectives. You can also understand what's resonating in your network with context like who Favorited a Tweet.