Yep HDMI adaptor, Iphone 6Plus. Dominator V3 goggles. And it sucked. iPhone outputs an annoying border, combined with a not so large screen on the dominator, just meant it wasnt immersive.
Then combined with the fact you need to keep removing the goggles to interact with tablet, which usually meant head grease all over the optics, and adjusting again etc etc.
The compromises were not worth it. Still want to try with hootoo as the FOV would be much bigger, at least for novelty. Id like to try headplay but would like to just try a set on first so I don't end up in the same position.