Feature depth is inherently limited. Consumers clearly dislike deeply nested features on mobile phones. They prefer the remote control “one button” experience. They want to get in, solve their problem, and be done. This is challenge for larger feature-rich sites like Facebook and Yahoo, and a real benefit for focused best-of-breed providers like Instagram. It is also why YouTube, Google Maps, Facebook messenger and Vine are separate from their mothership. This limited depth concept is huge and vastly misunderstood. Mobile values the single solution, one sharp blade rather than a Swiss army knife.