Twitter touched off a furor among users last week by making it easier for mobile users to insert images directly into their followers' Timelines, just like Facebook does with news feeds. People are wondering, what's the point of keeping tweets to 140 characters if you're going to clutter the message list with pictures?Of course, that's not how Twitter saw it. In the company blog, Michael Sippey called the messages newly enhanced with photos and Vine videos "rich Tweets" and said they "can bring your followers closer to what's happening, and make them feel like they are right there with you." Users have long been able to post images on Twitter, but previously you had to click through to see them; they didn't automatically appear in the timeline. Same with Vine videos. Users have to download Twitter's latest mobile app in order to see the new visual look, which shows the images and videos in preview mode automatically and lets users touch them to call up a bigger version or play the videos. But anyone who really dislikes the automatic image-display feature can disable it on their cell phone if they decide they want to go back to a more text-heavy timeline. You can do so by finding the "Settings" area and looking at the bottom for an option called "disable image previews." Toggle to "off" on your iPhone or uncheck the box on Android phones. Related Reading: Vine Video Tutorial and Twitter Account Settings.