A 2 minute video has appeared on YouTube previewing Twitter 2.0 ( see below).  The video was published by the website everythingandroid. The video shows that there will be a big change in the UI of Twitter 2.0. The home screen has been changed with users being directed directly to their latest news stream, being more reminiscent of the web version of Twitter. While tweeting has also beem improved.  A release date for the update to Twitter 2.0 has not been released yet.