Twitter has introduced a mobile interface optimized for Android, iPhone, webOS and Nokia S60 browsers. mobile.twitter.comhas been built from scratch using only the Twitter API, and still contains many of the features found on the regular website. The new interface includes Reply, Retweet and Favourite buttons, as well as the ability to see Mentions and Direct Messages. It displays updates, followers and popular trending topics, with supplemental functions such as a search box and an option to remove images.