I saw this same wallet and like you wanted to try to replicate this design... I used Firefox "Video Download Helper" add-in to download the video to my hard drive from the browser/Youtube. Then, using Windows Movie Maker, I tried painstakingly using the slider bar to "watch" the movie in reverse. It was miserable, frustrating, poor resolution, and obviously was never intended by the author to be used as an instruction so his hands and the camera are constantly in the wrong place.
That being said, I did succeed to fold a prototype but it was very hard to interpret a 'crease pattern' from any one frame on that video. My interpretation is that it is pretty much a 5x7 rectangle, except that 2 of the 7 lengthwise divisions are rectangles to make the wallet a little longer in the middle. Beyond that I can't help
.. good luck, would sure be nice to know how to do more of these..
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