The iYo is a yoyo-powered induction charger for your iPhone. This is a concept charger by Swedish designer Peter Thuvander and is definitely the first yo-yo-based charging mechanism I have seen this week. This month, even.
As the inventor helpfully points out, “since solarchargers don´t work at night or in Sweden half the year, this should be a smash hit.” Way to corner a niche market! The picture looks cool, but the video really highlights the yo-yo action and does some good ‘splaining about how it works.
If you’re more highly technological and less color-blind than me, perhaps this schematic will make some sense to you. As for me, all I know thus far about this product is along the lines of “yo-yo! iPhone! Oooooh!”