TeetBot, a Twitter client for iOS was recently updated to version 2.8 with a new media timeline. The media timeline feature can be activated by scrolling to the top of a timeline and switch to the new media view to be able display only supported image and video contents. The latest version comes with a completely redesigned image viewer, and various other bug fixes. If you don’t already have TweetBot, you can get the app for $2.99 from the app store.
Source: iTunes App Store (iPhone/iPod Touch), (iPad)