Smart phones are one of the important things in consumers electronics item. Now a days smart phone developers has been found to get more customers by increasing the normal size of the screen to bigger. For example Samsung galaxy note 5.3 inches. Most people may thinks its a tablet computer. It comes with the smart pen that is like a tablet like feature. It stylish where we have 8 MP camera. It seems like you are replacing camera with mobile. Instead of carrying cd player, camera, radio, navigator etc. we can just carry a mobile phone which does the work of all.

(http://www.samsung.com/us/system/consumer/product/sg/hi/71/sghi717zbaatt/blue_galaxynote_spen_1.jpg)

Reference:
http://www.samsung.com/us/mobile/cell-phones/SGH-I717ZBAATT
http://www.youtube.com/watch?v=Vs6gL1l2uhE