We've heard rumors for years that we'll be getting flexible displays that you can roll or fold up. We'll see a demo, and then we don't hear anything about it for months. Well, the more things change, the more they stay the same. We've most recently heard that the Samsung Galaxy X will be treated to a display that you will be able to fold up and stick in your pocket. And this week, Samsung will be showing off a screen that can do exactly that.