There is only one company, for all intents and purposes, that completely dominates this space for adult entertainment applications.
If you are looking for info on what 2016 will look like for VR Porn, you have to check out Red Light Center
Red Light Social Center
They launched their new version at AVN this year, with a huge booth full of Oculus Rifts, dozens of porn stars, all over the media...
Good luck mate!