But as VR headsets start appearing on store shelves, the very real differences ... can’t be powered by a mobile phone. The Oculus Rift, Valve and HTC’s Vive, and Sony PlayStation VR ...
The Steam store is fully-supported by HTC's Vive headset, and also works with Facebook's Oculus Rift - though in the latter case the user must proactively choose to accept content from "unknown ...