IMO the competing MVP is Twitter stripped down as much as possible. When I consume my Twitter feed about 50% of all Tweets have a photos or video. So the consumption process is scroll, read just a bit, watch or view something and repeat. For me that pattern is a pleasant experience. Stuff can be removed. The MySpace like backgrounds to start. Thinking big: remove or tone down mentions and hash tags since IMO they're visually distracting. Point is to make a list-based product where people consume photos and videos from a lightly filtered group of peers as easily as possible.