Google's decision to back away from phone-based VR may have an upside for creators. The internet giant is releasing a Cardboard open source project that will let developers create VR experiences and add Cardboard support to their apps. It covers basics like head tracking, lens distortion rendering and input, but also includes a QR code library to ensure that you're not dependent on Google's Cardboard app to pair viewers. Between this and existing open source tools for making viewers, companies and homebrew teams alike could create all the hardware and software they need without asking Google for help.