Finally we're able to make the cell phone in the shape of a mimicked... eh... phone...
Ever mimicked holding a phone by keeping your fist to your cheek bone with the thumb up to your ear and pinky in front of your mouth? (Yes, just like you do now!)
Now imagine two casings; one slides on the tip of your thumb, holding speaker and antenna, and the other one, with microphone, on your pinky finger... Must be fun to see. Now let's figure out where to put other components...