Have you ever dreamed of a better cellar phone that the famous iPhone? Here is the idea which can answer your question. A cellar phone with 100% touch screen. You may say, that is not a new idea. Yeah, you're right. What makes this concept different is: It can be combined!
Two or more such cellar phone can be used together to make a better user experience. In my opinion, it's more like a LCD TV WALL. :)