I am excited to announce how easy it is to compose and post a Tweet on Windows Phone using Cortana. Just activate Cortana, say Twitter-new Tweet. Wait for a sound effect that indicates the microphone is active and awaiting input. Dictate your post. Wait for Narrator to read back your message. If it is correct, press the Tweet button on your app bar, and your Twitter composition is posted. It is very easy and very quick. The Twitter app on Windows Phone still has many other accessibility problems, but this feature works incredibly well.