All of the attendees of Google I/O this year (myself included) got the latest version of the Mountain View company’s Cardboard virtual reality headset for freeā€”and now it looks like you can too. To promote their “Adult Swim Virtual Brainload” app, Adult Swim is trying to put a free Cardboard viewer in the hands of as many people as they can. But there’s only one catch: You have to fax them a form. expand full story