I fear that all of this is a race to produce incompatible consumption devices for proprietary paid content channels. I do not expect to see open content for them via open channels and sincerely hope I'm wrong.

Steam is just one of the players that will give you access to their content exclusively via their channel on their device. It's all modeled on Apple. I was once very excited about VR but watching what is happening has cooled my interest considerably. It will probably be a long time before the shakeout that can make it interesting again.