We briefly swung by Japanese cellphone carrier and telecommunications giant DoCoMo’s current design exhibition in Tokyo that shows how the form factor of their smartphones has evolved. The exhibition, called DoCoMo x Design, breaks down the iterative design process with hundreds of examples of colors and shapes. It also point to where variation on the smartphone hardware design may be headed in the future. If you’re in Tokyo, swing by the Tokyo Midtown megaplex between Roppongi and Akasaka.