Thanks to Apple's iPhone, the operating system and UI of mobile phones took a giant leap from the clunky, hard to use and crowded-screen UIs we had in the past (prior to the iPhone). In the last few years, the question has been how else can we improve these phones. Better cameras? Faster processors? Bigger sound? Sharper / Larger screens? Slimmer / Thinner devices? I think maybe we have to imagine the entire phone factor now ... take a look at this video from Samsung that shows us the next wave of innovation with flexible screens ... just imagine the possibilities.