Following YouTube's support for 4K live 360 video late last year, it was only a matter of time before Facebook caught up. After all, Zuckerberg's betting big on VR. Today, the social media giant announced the launch of 4K resolution for live 360 streams, meaning we can soon enjoy more immersive VR live streams via the Facebook 360 app for Gear VR. This also preps the platform well for when 4K VR headsets finally go mainstream. As part of this update, Facebook is also bringing its Donate Button and Scheduled Live features over to its live 360 video service, in the hopes of driving 360 video viewership while helping out non-profits.