Twitter’s interesting Digits sign-in tool is also showcased, which lets users sign-in with a phone number. Setting up your app to work with third party services can sometimes get confusing.

Twitter is preparing to launch several impressive new features, including a new streaming API that will give desktop client applications real-time access to the user's message timeline.

What it is: Twitter is an online social networking tool that allows users to send messages, known as tweets, and share photos and videos. Each tweet can be no longer than 140 characters.