Echofon developer Naan Studio has released a new free Twitter app focusing on allowing users to browse only the photos in their Twitter timeline. Photofon delivers a basic no-frills Twitter client that provides a photo-centric view of the user’s timeline, displaying only tweets that contain links to photos. Common Twitter photo services such as TwitPic an yFrog are supported and users can double-tap on any image to view it in full-screen mode. Tweets can be marked as favourites or retweeted using buttons that appear beside each user name, although Photofon is otherwise a read-only Twitter client designed to view photos rather than posting new tweets. Photofon is available from the App Store as a free download.