Are you on twitter yet?? Expect a cosmetic change to its interface!!

The new version places a search box in the middle of the screen, with the words "See what people are saying about..." above it. When a user inputs search criteria, the results are placed on the same page.
Additionally, the site provides a number of "trending topics", giving examples of hot topics that people are searching for on the site. The site also provides a short description of why that particular topic is popular at that time.
Twitter indicates that it will grow its user base rapidly over the next few years, with a goal to reach one billion users by 2014.

Is it time for you to get onto Twitter?