Uni

He probably Did it for a Design Coarse at Uni. I did Porduct Design At Bournemouth Uni a Couple of years back, and wish i did something like this! you dont have to have a fully working prototype, just a fully working principle. The rest can be finialized later on in the design stages. You only get about 8 months to do all the design work, AND manufacture, so your breif has to suit the project. So i owuld guess that his breif was "create a fun, strong folding bike which will fold into the size of the wheel, no larger, and which can roll on the wheels when folded." keep it short and simple, otherwise you would of had to finish the brakes, drive etc and that would have been a lot more hassle. Really good concept and looks really good too. hands down the best folding bike I've seen.