I wanted to comment on the aspect ratio of the Duo’s outer and inner screens, both about 1.4:1. As a former graphic designer, this ratio (known as the silver ratio, 1 to the square root of 2) is very familiar to me. This is because in the UK and Europe all our paper sizes are based on this ratio.
A4 measures 297 x 210mm and when folded exactly in half, you get A5, which is the same proportion. This continues with smaller sizes of A6 etc. In the opposite direction, A3 is double A4, etc., until we reach A0, which has an area of 1 square meter. Great, huh?
So the iPhone Duo is like an A5 sheet of paper, folded in half when closed, and it’s something that will have looked very familiar to Molly Anderson, who (like Jony Ive) is from the UK.
Stuart G. via email
I don’t know about you, but I prefer to refer to the shape of the iPhone Duo as “silver ratio” instead of “passport style.” It’s catchy and elegant. And it’s great to know that Apple put some serious thought into the form factor and not just arbitrarily choosing a shape.
The iPhone Duo was unveiled during the “Surprise and Shine” event on September 9. Apple will begin taking orders for the iPhone Duo on October 16, with shipments beginning on October 23. Learn more about the iPhone Duo.
